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 | 24 |
| 1 | 1153 |
| 2 | 55368 |
| 3 | 2658817 |
| 4 | 127678584 |
| 5 | 6131230849 |
| 6 | 294426759336 |
| 7 | 14138615678977 |
| 8 | 678947979350232 |
| 9 | 32603641624490113 |
| 10 | 1565653745954875656 |
| 11 | 75183983447458521601 |
| 12 | 3610396859223963912504 |
| 13 | 173374233226197726321793 |