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 | 5 |
| 2 | 68 |
| 3 | 1110 |
| 4 | 19010 |
| 5 | 329126 |
| 6 | 5693968 |
| 7 | 98074332 |
| 8 | 1680306750 |
| 9 | 28638104550 |
| 10 | 485731377560 |
| 11 | 8202665891316 |
| 12 | 137983709713668 |
| 13 | 2313146752430780 |
| 14 | 38658742468243520 |
| 15 | 644327268137066104 |
| 16 | 10712855104602481206 |