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 | 128 |
| 2 | 610 |
| 3 | 4572 |
| 4 | 25045 |
| 5 | 102807 |
| 6 | 339120 |
| 7 | 948645 |
| 8 | 2337564 |
| 9 | 5211940 |
| 10 | 10721354 |
| 11 | 20642867 |
| 12 | 37610343 |
| 13 | 65394163 |
| 14 | 109236389 |
| 15 | 176246402 |
| 16 | 275862066 |
| 17 | 420381442 |
| 18 | 625570112 |
| 19 | 911349138 |
| 20 | 1302568702 |
| 21 | 1829872466 |
| 22 | 2530657692 |