User James Propp

1 vote

1 answer

101 views

The signs of some mean-zero random variables

asked Apr 6 at 12:34

2 votes

1 answer

243 views

The probability that iid draws from a mean zero random variable sum to zero

asked Feb 24 at 22:47

15 votes

1 answer

873 views

Scrambling a “Connections” grid

asked Feb 6 at 12:01

6 votes

1 answer

284 views

Sequence of digits of powers of two

asked Dec 19, 2023 at 23:44

4 votes

3 answers

614 views

Mean width and perimeter

asked Mar 15, 2018 at 15:58

18 votes

2 answers

1k views

Formula for volume of $n$-ball for negative $n$

asked Mar 4, 2020 at 1:12

1 vote

0 answers

80 views

A face and all its neighbors: terminology?

asked Sep 4, 2023 at 17:18

56 votes

12 answers

29k views

Is pi a good random number generator?

asked Jun 3, 2010 at 18:12

11 votes

1 answer

467 views

Asymptotics for pairs of positive integers whose harmonic (resp. geometric) mean is an integer

asked Aug 28, 2023 at 3:21

7 votes

2 answers

462 views

Adrastus, Proclus, and 2+8+50+288+… vs. 1+9+49+289+…

asked Apr 1, 2022 at 14:34

30 votes

3 answers

2k views

Do roots of these polynomials approach the negative of the Euler-Mascheroni constant?

asked Mar 2, 2023 at 4:33

37 votes

2 answers

4k views

1+2+3+4+… and −⅛

asked Feb 25, 2023 at 0:13

9 votes

2 answers

302 views

Solving systems of linear equations without introducing negative numbers

asked Feb 4, 2023 at 17:55

2 votes

1 answer

171 views

Terminology associated with mathematical induction

asked Feb 1, 2023 at 19:04

9 votes

0 answers

312 views

Goldberg-Seymour conjecture

asked Jan 27, 2023 at 17:13

7 votes

1 answer

235 views

Counting returns in null-recurrent random walk

asked Jan 11, 2023 at 23:54

8 votes

3 answers

1k views

Dedekind-Peano axioms, but numbers have at most one successor

asked Jan 20, 2023 at 18:26

1 vote

1 answer

72 views

Fixed points of rational continuous piecewise affine maps

asked Dec 21, 2022 at 19:48

7 votes

1 answer

175 views

Origin of the abacus bijection

asked Sep 19, 2022 at 3:19

45 votes

0 answers

910 views

Extending a line-arrangement so that the bounded components of its complement are triangles

asked Jan 20, 2014 at 19:45

1 vote

0 answers

65 views

Counting pieces when an object is cut n ways

asked Sep 1, 2022 at 20:19

15 votes

1 answer

683 views

Information inequalities

asked Aug 20, 2022 at 19:23

2 votes

2 answers

259 views

Optimizing a multilinear function over the vertices of the cube

asked Jun 3, 2022 at 20:08

2 votes

1 answer

128 views

Conjectural congruences for numbers related to Littlewood-Richardson coefficients

asked May 17, 2022 at 16:10

1 vote

0 answers

179 views

Writing the plane as {(x,y,z): x+y+z=0} [closed]

asked Apr 26, 2022 at 19:59

3 votes

1 answer

267 views

Linear combinations of geometric series

asked Mar 27, 2022 at 19:04

12 votes

1 answer

593 views

Geometric series in algebraic number fields

asked Mar 27, 2022 at 15:57

27 votes

8 answers

1k views

Area-differences for lattice triangles in a checkerboard

asked Mar 4, 2022 at 1:56

1 vote

1 answer

163 views

Nomenclature for largest odd factor

asked Feb 26, 2022 at 0:07

5 votes

2 answers

351 views

Extended binomial coefficients and the gamma function

asked Feb 22, 2022 at 16:21

Stack Exchange Network

214 Questions

The signs of some mean-zero random variables

The probability that iid draws from a mean zero random variable sum to zero

Scrambling a “Connections” grid

Sequence of digits of powers of two

Mean width and perimeter

Formula for volume of $n$-ball for negative $n$

A face and all its neighbors: terminology?

Is pi a good random number generator?

Asymptotics for pairs of positive integers whose harmonic (resp. geometric) mean is an integer

Adrastus, Proclus, and 2+8+50+288+… vs. 1+9+49+289+…

Do roots of these polynomials approach the negative of the Euler-Mascheroni constant?

1+2+3+4+… and −⅛

Solving systems of linear equations without introducing negative numbers

Terminology associated with mathematical induction

Goldberg-Seymour conjecture

Counting returns in null-recurrent random walk

Dedekind-Peano axioms, but numbers have at most one successor

Fixed points of rational continuous piecewise affine maps

Origin of the abacus bijection

Extending a line-arrangement so that the bounded components of its complement are triangles

Counting pieces when an object is cut n ways

Information inequalities

Optimizing a multilinear function over the vertices of the cube

Conjectural congruences for numbers related to Littlewood-Richardson coefficients

Writing the plane as {(x,y,z): x+y+z=0} [closed]

Linear combinations of geometric series

Geometric series in algebraic number fields

Area-differences for lattice triangles in a checkerboard

Nomenclature for largest odd factor

Extended binomial coefficients and the gamma function