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 | 88 |
| 2 | 3828 |
| 3 | 109736 |
| 4 | 2331890 |
| 5 | 39175752 |
| 6 | 541931236 |
| 7 | 6348337336 |
| 8 | 64276915527 |
| 9 | 571350360240 |
| 10 | 4513667845896 |
| 11 | 32006008361808 |
| 12 | 205371886988268 |
| 13 | 1200635647008336 |
| 14 | 6431976680401800 |
| 15 | 31731084956648880 |
| 16 | 144773075114710515 |
| 17 | 613156553427009240 |