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 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 16 |
| 7 | 28 |
| 8 | 93 |
| 9 | 156 |
| 10 | 518 |
| 11 | 864 |
| 12 | 2932 |
| 13 | 4861 |
| 14 | 16709 |
| 15 | 27600 |
| 16 | 95849 |
| 17 | 157899 |
| 18 | 552749 |
| 19 | 908768 |
| 20 | 3201848 |
| 21 | 5256009 |
| 22 | 18616751 |
| 23 | 30523044 |
| 24 | 108592239 |
| 25 | 177865347 |
| 26 | 635175153 |
| 27 | 1039511496 |
| 28 | 3724193120 |
| 29 | 6090715215 |
| 30 | 21881993115 |
| 31 | 35765791320 |
| 32 | 128810517855 |