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 | 13 |
| 2 | 72 |
| 3 | 136 |
| 4 | 419 |
| 5 | 700 |
| 6 | 1851 |
| 7 | 3028 |
| 8 | 7564 |
| 9 | 12412 |
| 10 | 30209 |
| 11 | 50020 |
| 12 | 119942 |
| 13 | 200524 |
| 14 | 475853 |
| 15 | 802612 |
| 16 | 1888976 |
| 17 | 3211036 |
| 18 | 7504737 |
| 19 | 12844804 |
| 20 | 29838451 |
| 21 | 51379948 |
| 22 | 118713767 |
| 23 | 205520596 |
| 24 | 472568449 |
| 25 | 822083260 |
| 26 | 1882043403 |