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 | 36 |
| 2 | 446 |
| 3 | 3172 |
| 4 | 15891 |
| 5 | 62408 |
| 6 | 204828 |
| 7 | 585672 |
| 8 | 1501269 |
| 9 | 3521452 |
| 10 | 7674810 |
| 11 | 15723500 |
| 12 | 30556903 |
| 13 | 56739216 |
| 14 | 101252408 |
| 15 | 174482832 |
| 16 | 291507177 |
| 17 | 473741364 |
| 18 | 751024438 |
| 19 | 1164218484 |
| 20 | 1768415099 |
| 21 | 2636848984 |
| 22 | 3865629780 |
| 23 | 5579414360 |
| 24 | 7938153405 |
| 25 | 11145058236 |
| 26 | 15455946546 |
| 27 | 21190138876 |
| 28 | 28743091407 |