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 | 3 |
| 5 | 22 |
| 6 | 82 |
| 7 | 218 |
| 8 | 476 |
| 9 | 914 |
| 10 | 1603 |
| 11 | 2628 |
| 12 | 4089 |
| 13 | 6102 |
| 14 | 8800 |
| 15 | 12334 |
| 16 | 16874 |
| 17 | 22610 |
| 18 | 29753 |
| 19 | 38536 |
| 20 | 49215 |
| 21 | 62070 |
| 22 | 77406 |
| 23 | 95554 |
| 24 | 116872 |
| 25 | 141746 |
| 26 | 170591 |
| 27 | 203852 |
| 28 | 242005 |
| 29 | 285558 |
| 30 | 335052 |
| 31 | 391062 |
| 32 | 454198 |
| 33 | 525106 |
| 34 | 604469 |
| 35 | 693008 |
| 36 | 791483 |
| 37 | 900694 |
| 38 | 1021482 |