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 | 1 |
| 2 | 10 |
| 3 | 12 |
| 4 | 16 |
| 5 | 21 |
| 6 | 22 |
| 7 | 33 |
| 8 | 64 |
| 9 | 64 |
| 10 | 372 |
| 11 | 7928 |
| 12 | 10206 |
| 13 | 18400 |
| 14 | 319831 |
| 15 | 429477 |
| 16 | 588460 |
| 17 | 849875 |
| 18 | 859279 |
| 19 | 2903676 |
| 20 | 11021989 |
| 21 | 14742559 |
| 22 | 16613535 |
| 23 | 48017191 |
| 24 | 329292950 |
| 25 | 3988366898 |
| 26 | 5315516684 |
| 27 | 19567917130 |
| 28 | 21634744969 |
| 29 | 23775894403 |