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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 7 |
| 7 | 10 |
| 8 | 13 |
| 9 | 22 |
| 10 | 23 |
| 11 | 28 |
| 12 | 34 |
| 13 | 40 |
| 14 | 61 |
| 15 | 73 |
| 16 | 361 |
| 17 | 490 |
| 18 | 613 |
| 19 | 1624 |
| 20 | 2000 |
| 21 | 2994 |
| 22 | 4301 |
| 23 | 4332 |
| 24 | 18668 |
| 25 | 32544 |
| 26 | 34936 |
| 27 | 267598 |
| 28 | 270658 |
| 29 | 293134 |
| 30 | 319889 |
| 31 | 414508 |