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 | 23 |
| 2 | 3137 |
| 3 | 199211 |
| 4 | 523541 |
| 5 | 16691693 |
| 6 | 1393313963 |
| 7 | 2428124317 |
| 8 | 3498135023 |
| 9 | 4028940343 |
| 10 | 191353191413 |
| 11 | 221327221393 |
| 12 | 507217507289 |
| 13 | 843911844001 |
| 14 | 25654632565559 |
| 15 | 55778515577959 |
| 16 | 82237498223863 |
| 17 | 1127656111276687 |
| 18 | 1280935912809491 |
| 19 | 2038858320388727 |
| 20 | 3338451733384667 |
| 21 | 5272111352721287 |
| 22 | 9280102992801209 |