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 | 24 |
| 2 | 536 |
| 3 | 12392 |
| 4 | 286752 |
| 5 | 6635624 |
| 6 | 153552936 |
| 7 | 3553321281 |
| 8 | 82226315586 |
| 9 | 1902773895293 |
| 10 | 44031505860633 |
| 11 | 1018919543279305 |
| 12 | 23578503968558227 |
| 13 | 545622913077172101 |
| 14 | 12626092124920479898 |
| 15 | 292176517015939695008 |