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 | 1 |
| 2 | 48 |
| 3 | 702 |
| 4 | 14364 |
| 5 | 253341 |
| 6 | 4762206 |
| 7 | 87054174 |
| 8 | 1610684397 |
| 9 | 29645381115 |
| 10 | 546876640548 |
| 11 | 10078456022415 |
| 12 | 185816448936792 |
| 13 | 3425262221153151 |
| 14 | 63144918326035629 |
| 15 | 1164039832228952691 |
| 16 | 21458721711659114403 |