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) |
|---|---|
| 0 | 1 |
| 1 | 22 |
| 2 | 310 |
| 3 | 2583 |
| 4 | 13809 |
| 5 | 54186 |
| 6 | 171002 |
| 7 | 460055 |
| 8 | 1096313 |
| 9 | 2375494 |
| 10 | 4768246 |
| 11 | 8988607 |
| 12 | 16078425 |
| 13 | 27509418 |
| 14 | 45304554 |
| 15 | 72180431 |
| 16 | 111712337 |
| 17 | 168523670 |
| 18 | 248501398 |
| 19 | 359039239 |
| 20 | 509310241 |
| 21 | 710570442 |
| 22 | 976495290 |
| 23 | 1323550503 |