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 | 9 |
| 3 | 82 |
| 4 | 1041 |
| 5 | 15626 |
| 6 | 280212 |
| 7 | 5764802 |
| 8 | 134221889 |
| 9 | 3486785131 |
| 10 | 100000078254 |
| 11 | 3138428376722 |
| 12 | 106993207077516 |
| 13 | 3937376385699290 |
| 14 | 155568095598166344 |
| 15 | 6568408355713287812 |
| 16 | 295147905180426634241 |
| 17 | 14063084452067724991010 |