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 | 2 |
| 1 | 3 |
| 2 | 4 |
| 3 | 6 |
| 4 | 11 |
| 5 | 12 |
| 6 | 20 |
| 7 | 192 |
| 8 | 212 |
| 9 | 308 |
| 10 | 466 |
| 11 | 505 |
| 12 | 510 |
| 13 | 1932 |
| 14 | 3135 |
| 15 | 7704 |
| 16 | 7714 |
| 17 | 7716 |
| 18 | 12296 |
| 19 | 30804 |
| 20 | 198744 |
| 21 | 316370 |
| 22 | 316376 |
| 23 | 316504 |
| 24 | 1289220 |
| 25 | 3291300 |
| 26 | 5269140 |
| 27 | 5269157 |
| 28 | 8440956 |
| 29 | 8440984 |
| 30 | 55972776 |
| 31 | 55972788 |
| 32 | 89959080 |
| 33 | 89959230 |
| 34 | 89959334 |