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 | 1 |
| 1 | 29 |
| 2 | 1471 |
| 3 | 79808 |
| 4 | 4375897 |
| 5 | 240378643 |
| 6 | 13209069847 |
| 7 | 725898384359 |
| 8 | 39891876471539 |
| 9 | 2192269974717929 |
| 10 | 120476898663671488 |
| 11 | 6620847045486150863 |
| 12 | 363850801995789860221 |
| 13 | 19995539171949615541457 |
| 14 | 1098861359580093467365169 |
| 15 | 60388283471627147242052029 |