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 | 29 |
| 3 | 1037 |
| 4 | 40559 |
| 5 | 1667583 |
| 6 | 70782699 |
| 7 | 3071608779 |
| 8 | 135473190854 |
| 9 | 6049729693582 |
| 10 | 272822775416318 |
| 11 | 12401578633961126 |
| 12 | 567447248339504450 |
| 13 | 26107796156861857866 |
| 14 | 1206858263561650517658 |
| 15 | 56014709781906608746434 |