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 | 65 |
| 2 | 4225 |
| 3 | 105936 |
| 4 | 2346621 |
| 5 | 41429335 |
| 6 | 683241763 |
| 7 | 10432265840 |
| 8 | 154004233160 |
| 9 | 2204564726744 |
| 10 | 31044446020755 |
| 11 | 431344655622502 |
| 12 | 5945601513772082 |
| 13 | 81452204001027552 |
| 14 | 1111514446777014206 |
| 15 | 15124130993994618127 |