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 | 25 |
| 2 | 428 |
| 3 | 6278 |
| 4 | 84879 |
| 5 | 1092243 |
| 6 | 13601506 |
| 7 | 165488176 |
| 8 | 1979095877 |
| 9 | 23357343581 |
| 10 | 272803757304 |
| 11 | 3159571375194 |
| 12 | 36342586372795 |
| 13 | 415641464948839 |
| 14 | 4730786270092622 |
| 15 | 53625950549096132 |
| 16 | 605758471885400433 |