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 | 2197 |
| 3 | 371293 |
| 4 | 4826809 |
| 5 | 51185893014090757 |
| 6 | 62748517 |
| 7 | 7056410014866816666030739693 |
| 8 | 815730721 |
| 9 | 91733330193268616658399616009 |
| 10 | 10604499373 |
| 11 | 112455406951957393129 |
| 12 | 12646218552730347184269489080961456410641 |
| 13 | 13 |
| 14 | 1461920290375446110677 |
| 15 | 15502932802662396215269535105521 |