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 | 5 |
| 3 | 98 |
| 4 | 127 |
| 5 | 923 |
| 6 | 5474 |
| 7 | 16490 |
| 8 | 25355 |
| 9 | 37910 |
| 10 | 85150 |
| 11 | 1033216 |
| 12 | 2290644 |
| 13 | 7844861 |
| 14 | 11170684 |
| 15 | 18884358 |
| 16 | 21481832 |
| 17 | 35060787 |
| 18 | 52399788 |
| 19 | 201059261 |
| 20 | 261533994 |
| 21 | 9939708446 |
| 22 | 211698940106 |
| 23 | 3030068839686 |
| 24 | 4326424644987 |
| 25 | 6082687570463 |