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 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 13 |
| 6 | 9 |
| 7 | 29 |
| 8 | 59 |
| 9 | 1163 |
| 10 | 569 |
| 11 | 4861 |
| 12 | 21341 |
| 13 | 58301 |
| 14 | 79139 |
| 15 | 619181 |
| 16 | 260041 |
| 17 | 1715839 |
| 18 | 1808487 |
| 19 | 10190221 |
| 20 | 116220883 |
| 21 | 32925391 |
| 22 | 966183 |
| 23 | 13920029 |
| 24 | 455451475 |
| 25 | 4597423223 |
| 26 | 1536962359 |
| 27 | 64517796001 |
| 28 | 154777722503 |
| 29 | 235091155703 |
| 30 | 3714867879427 |
| 31 | 6975593267347 |
| 32 | 75441657715841 |