User David S. Newman

26 votes

6 answers

2k views

For which $n$ is there a permutation such that the sum of any two adjacent elements is a prime?

asked Jun 6, 2016 at 14:48

18 votes

2 answers

844 views

What is the smallest $x$ such that $\lfloor x^n\rfloor$ has the same parity as n?

asked Apr 5, 2016 at 15:08

17 votes

1 answer

798 views

Are There Always Group Generators Which Give Unimodal Growth?

asked Dec 12, 2013 at 4:54

16 votes

0 answers

454 views

A Product Related to Unrestricted Partitions

asked Oct 30, 2013 at 3:28

13 votes

0 answers

296 views

Is the set of numbers $\{ [n^{3/2}] \mid n\text{ an integer}\}$ a basis of order 3?

asked Dec 27, 2014 at 1:01

13 votes

3 answers

1k views

Can you make an identity from this product?

asked Jun 8, 2019 at 16:06

9 votes

1 answer

187 views

A simplified version of an old problem about the generating function for unrestricted partitions

asked Jun 22, 2017 at 23:58

8 votes

0 answers

200 views

A Product Related to Partitions with Largest Part n

asked Dec 8, 2013 at 1:48

7 votes

1 answer

885 views

On the parity of $[x^n]$

asked Mar 30, 2016 at 1:26

7 votes

1 answer

220 views

Another question related to the generating function for unrestricted partitions

asked Aug 12, 2016 at 0:16

7 votes

1 answer

217 views

Partitions restricted to only certain summands

asked Aug 25, 2019 at 1:37

6 votes

1 answer

300 views

an identity related to the pentagonal numbers

asked Jul 14, 2017 at 16:35

6 votes

2 answers

309 views

Can the same recursion pattern define several sequences of primes?

asked Feb 2, 2019 at 22:24

5 votes

0 answers

249 views

What is the density of the reciprocal of the set of cubes?

asked Sep 11, 2014 at 3:37

4 votes

0 answers

146 views

Another Generalization of a Problem of Steinhaus

asked Dec 24, 2013 at 3:11

4 votes

2 answers

355 views

Where can I find information about Lagrange's Theorem with certain squares left out?

asked Jun 1, 2014 at 3:06

4 votes

1 answer

293 views

A sequence reminiscent of Fibonacci's recursion

asked Aug 2, 2020 at 20:10

3 votes

1 answer

230 views

Questions about a product of trinomials

asked Apr 27, 2018 at 20:03

3 votes

0 answers

252 views

What are the values of this sequence?

asked Dec 30, 2014 at 22:24

2 votes

0 answers

233 views

Some continued fractions for transcendental numbers

asked May 13, 2015 at 23:35

2 votes

1 answer

270 views

How does this sequence grow

asked Jun 11, 2014 at 15:48

2 votes

1 answer

472 views

A Problem Related to the 17 Point Problem of Steinhaus

asked Nov 1, 2013 at 6:33

2 votes

1 answer

401 views

Questions about a finite solvable group

asked Feb 15, 2019 at 17:08

2 votes

1 answer

164 views

Yet another question about unrestricted partitions

asked Sep 26, 2017 at 16:51

2 votes

0 answers

58 views

Making a certain coefficient of a generating function for partitions as small as posssible

asked Jun 7, 2018 at 22:58

2 votes

0 answers

252 views

How many solutions of x^3 +y^3 = z^3+3 are known? [duplicate]

asked Aug 8, 2019 at 21:01

1 vote

0 answers

206 views

Can you make these two series equal?

asked Jul 4, 2019 at 15:11

1 vote

0 answers

113 views

A question about partitions into distinct parts

asked Sep 15, 2019 at 17:48

1 vote

2 answers

130 views

A Mathematica program to output planar partitions [closed]

asked Jan 29, 2018 at 0:02

1 vote

1 answer

308 views

A product of polynomials

asked May 2, 2018 at 4:06

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34 Questions

For which $n$ is there a permutation such that the sum of any two adjacent elements is a prime?

What is the smallest $x$ such that $\lfloor x^n\rfloor$ has the same parity as n?

Are There Always Group Generators Which Give Unimodal Growth?

A Product Related to Unrestricted Partitions

Is the set of numbers $\{ [n^{3/2}] \mid n\text{ an integer}\}$ a basis of order 3?

Can you make an identity from this product?

A simplified version of an old problem about the generating function for unrestricted partitions

A Product Related to Partitions with Largest Part n

On the parity of $[x^n]$

Another question related to the generating function for unrestricted partitions

Partitions restricted to only certain summands

an identity related to the pentagonal numbers

Can the same recursion pattern define several sequences of primes?

What is the density of the reciprocal of the set of cubes?

Another Generalization of a Problem of Steinhaus

Where can I find information about Lagrange's Theorem with certain squares left out?

A sequence reminiscent of Fibonacci's recursion

Questions about a product of trinomials

What are the values of this sequence?

Some continued fractions for transcendental numbers

How does this sequence grow

A Problem Related to the 17 Point Problem of Steinhaus

Questions about a finite solvable group

Yet another question about unrestricted partitions

Making a certain coefficient of a generating function for partitions as small as posssible

How many solutions of x^3 +y^3 = z^3+3 are known? [duplicate]

Can you make these two series equal?

A question about partitions into distinct parts

A Mathematica program to output planar partitions [closed]

A product of polynomials