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 | 2 |
| 1 | 129 |
| 2 | 24133 |
| 3 | 3682913 |
| 4 | 496165411 |
| 5 | 62260698721 |
| 6 | 7472966967499 |
| 7 | 870530414842019 |
| 8 | 99262851056183695 |
| 9 | 11138479445180240497 |
| 10 | 1234379338586942892505 |
| 11 | 135436174616790289414111 |
| 12 | 14738971133550183905879827 |
| 13 | 1593061976858155930556059673 |
| 14 | 171191473337951767580578821529 |