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 | 1 |
| 2 | 10 |
| 3 | 88 |
| 4 | 322 |
| 5 | 330 |
| 6 | 1102 |
| 7 | 6328 |
| 8 | 8708 |
| 9 | 9075 |
| 10 | 50036 |
| 11 | 69203 |
| 12 | 119499 |
| 13 | 1127146 |
| 14 | 4977922 |
| 15 | 83001715 |
| 16 | 110648989 |
| 17 | 1075575929 |
| 18 | 2716859574 |
| 19 | 4005383367 |
| 20 | 13981702062 |