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 | 10 |
| 2 | 100 |
| 3 | 144 |
| 4 | 432 |
| 5 | 1014 |
| 6 | 2232 |
| 7 | 5000 |
| 8 | 11220 |
| 9 | 25392 |
| 10 | 54436 |
| 11 | 120350 |
| 12 | 264846 |
| 13 | 571576 |
| 14 | 1256072 |
| 15 | 2715892 |
| 16 | 5908344 |
| 17 | 12871320 |
| 18 | 27788516 |
| 19 | 60537606 |
| 20 | 131084800 |
| 21 | 283976596 |
| 22 | 617015956 |
| 23 | 1334446520 |
| 24 | 2896207628 |
| 25 | 6276299562 |
| 26 | 13590377602 |
| 27 | 29485253424 |