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 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 257 |
| 5 | 526 |
| 6 | 147 |
| 7 | 1030 |
| 8 | 1027 |
| 9 | 530793 |
| 10 | 31603 |
| 11 | 58685 |
| 12 | 2228292 |
| 13 | 113060 |
| 14 | 180326 |
| 15 | 163123 |
| 16 | 67280421584898 |
| 17 | 45957792327018709129 |
| 18 | 33414185 |
| 19 | 870543318650 |
| 20 | 4406613081350403 |
| 21 | 22864393425065 |
| 22 | 82812579069940 |
| 23 | 1576297793 |
| 24 | 27266016518 |