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) |
|---|---|
| 5 | 1 |
| 6 | 364 |
| 7 | 99463 |
| 8 | 25095280 |
| 9 | 6174066262 |
| 10 | 1506472167928 |
| 11 | 366573514642546 |
| 12 | 89117945389585840 |
| 13 | 21658948312410865183 |
| 14 | 5263390747480701708292 |
| 15 | 1279025522911365763892449 |
| 16 | 310804949350361548416923680 |
| 17 | 75525744222315755534269847164 |