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 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 13 |
| 5 | 20 |
| 6 | 3 |
| 7 | 51 |
| 8 | 87 |
| 9 | 121 |
| 10 | 711 |
| 11 | 1139 |
| 12 | 3537 |
| 13 | 8034 |
| 14 | 15752 |
| 15 | 27922 |
| 16 | 49629 |
| 17 | 33201 |
| 18 | 35975 |
| 19 | 143900 |
| 20 | 136341 |
| 21 | 545364 |
| 22 | 2181456 |
| 23 | 1060135 |
| 24 | 4240540 |
| 25 | 16962160 |
| 26 | 28647197 |
| 27 | 13597858 |
| 28 | 205877827 |
| 29 | 100616667 |
| 30 | 381266393 |
| 31 | 1397863922 |
| 32 | 3825576990 |
| 33 | 8216376565 |
| 34 | 14181633879 |
| 35 | 22366797148 |