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 | 9 |
| 3 | 28 |
| 4 | 281 |
| 5 | 126 |
| 6 | 11592 |
| 7 | 344 |
| 8 | 365465 |
| 9 | 593434 |
| 10 | 16095134 |
| 11 | 1332 |
| 12 | 921113624 |
| 13 | 2198 |
| 14 | 40424993884 |
| 15 | 27175280778 |
| 16 | 2137777203097 |
| 17 | 4914 |
| 18 | 121331143444050 |
| 19 | 6860 |
| 20 | 6310445825215406 |
| 21 | 1572228697798262 |
| 22 | 351047164202718608 |
| 23 | 12168 |
| 24 | 20174300460344963864 |
| 25 | 149975199312626 |