Timeline for The number of different lattice triangles
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 26, 2015 at 14:08 | answer | added | Fedor Petrov | timeline score: 2 | |
| Feb 18, 2014 at 2:20 | comment | added | Alexey Ustinov | My calculations give the sequence 1,1,2,3,2,4,3,5,4 which is not presented in OEIS. A shorter sequence 1,1,2,3,2,4,3,5 gives a relevant reference to A054384: Number of inequivalent sublattices of index $n$ in hexagonal lattice, where two lattices are considered equivalent if one can be rotated to give the other. But it is another problem. | |
| Feb 18, 2014 at 1:00 | comment | added | Gerry Myerson | Can you calculate $H_3(A)$ for the first few values of $A$, and then check the Online Encyclopedia of Integer Sequences? | |
| Feb 17, 2014 at 13:10 | history | asked | Alexey Ustinov | CC BY-SA 3.0 |