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 | 22 |
| 3 | 267 |
| 4 | 1996 |
| 5 | 10375 |
| 6 | 41406 |
| 7 | 135877 |
| 8 | 384112 |
| 9 | 966141 |
| 10 | 2212750 |
| 11 | 4693711 |
| 12 | 9340332 |
| 13 | 17610307 |
| 14 | 31703686 |
| 15 | 54839625 |
| 16 | 91604416 |
| 17 | 148382137 |
| 18 | 233880102 |
| 19 | 359762131 |
| 20 | 541403500 |
| 21 | 798782271 |
| 22 | 1157522542 |
| 23 | 1650105997 |
| 24 | 2317268976 |
| 25 | 3209603125 |