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 | 30 |
| 2 | 142 |
| 3 | 625 |
| 4 | 2402 |
| 5 | 8024 |
| 6 | 23610 |
| 7 | 62205 |
| 8 | 149031 |
| 9 | 329106 |
| 10 | 677706 |
| 11 | 1314145 |
| 12 | 2419348 |
| 13 | 4257692 |
| 14 | 7203590 |
| 15 | 11773293 |
| 16 | 18662385 |
| 17 | 28789446 |
| 18 | 43346358 |
| 19 | 63855729 |
| 20 | 92235910 |
| 21 | 130874080 |
| 22 | 182707874 |
| 23 | 251316029 |
| 24 | 341018523 |
| 25 | 456986682 |
| 26 | 605363730 |
| 27 | 793396257 |