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 | 44 |
| 2 | 865 |
| 3 | 19587 |
| 4 | 435027 |
| 5 | 9706901 |
| 6 | 216173426 |
| 7 | 4817792042 |
| 8 | 107354061547 |
| 9 | 2392171690343 |
| 10 | 53305366529469 |
| 11 | 1187812241964789 |
| 12 | 26468219711250515 |
| 13 | 589796016644509708 |
| 14 | 13142526595924490676 |
| 15 | 292857199578979575159 |