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) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 4 |
| 5 | 12 |
| 6 | 31 |
| 7 | 67 |
| 8 | 132 |
| 9 | 239 |
| 10 | 407 |
| 11 | 657 |
| 12 | 1019 |
| 13 | 1523 |
| 14 | 2211 |
| 15 | 3126 |
| 16 | 4323 |
| 17 | 5859 |
| 18 | 7806 |
| 19 | 10236 |
| 20 | 13239 |
| 21 | 16906 |
| 22 | 21346 |
| 23 | 26670 |
| 24 | 33010 |
| 25 | 40498 |
| 26 | 49290 |
| 27 | 59543 |
| 28 | 71438 |
| 29 | 85158 |
| 30 | 100913 |
| 31 | 118913 |
| 32 | 139398 |
| 33 | 162609 |
| 34 | 188817 |
| 35 | 218295 |
| 36 | 251349 |
| 37 | 288285 |