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 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 31 |
| 6 | 41 |
| 7 | 761 |
| 8 | 1076 |
| 9 | 5556 |
| 10 | 10092 |
| 11 | 3638892 |
| 12 | 3650442 |
| 13 | 482652042 |
| 14 | 496551642 |
| 15 | 539602650 |
| 16 | 1178115525 |
| 17 | 20923968003525 |
| 18 | 20925873907525 |
| 19 | 6423299579635525 |
| 20 | 6423418373678893 |
| 21 | 6491526825518893 |
| 22 | 11027299390478893 |
| 23 | 1124011755076998158893 |
| 24 | 1124011800169644507643 |