This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 5 |
| 8 | 8 |
| 9 | 22 |
| 10 | 44 |
| 11 | 96 |
| 12 | 215 |
| 13 | 439 |
| 14 | 959 |
| 15 | 1967 |
| 16 | 4185 |
| 17 | 8735 |
| 18 | 18143 |
| 19 | 37695 |
| 20 | 77939 |
| 21 | 161479 |
| 22 | 332008 |
| 23 | 684502 |
| 24 | 1404867 |
| 25 | 2882712 |
| 26 | 5904454 |
| 27 | 12078654 |
| 28 | 24682057 |
| 29 | 50375102 |
| 30 | 102724466 |
| 31 | 209250102 |
| 32 | 425921989 |
| 33 | 866187909 |
| 34 | 1760280404 |
| 35 | 3574740094 |