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 | 2 |
| 2 | 577 |
| 3 | 51896 |
| 4 | 4009989 |
| 5 | 345281974 |
| 6 | 30126035380 |
| 7 | 2657646397769 |
| 8 | 238004015750349 |
| 9 | 21505022353019864 |
| 10 | 1960179022139638131 |
| 11 | 180020101551309284879 |
| 12 | 16639947666244921992434 |
| 13 | 1546703841471331792075283 |
| 14 | 144470014127904647017055666 |