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 | 31 |
| 1 | 32 |
| 2 | 63 |
| 3 | 158 |
| 4 | 695 |
| 5 | 5718 |
| 6 | 6413 |
| 7 | 24957 |
| 8 | 31370 |
| 9 | 966057 |
| 10 | 997427 |
| 11 | 3958338 |
| 12 | 4955765 |
| 13 | 43604458 |
| 14 | 179373597 |
| 15 | 402351652 |
| 16 | 581725249 |
| 17 | 984076901 |
| 18 | 61594493111 |
| 19 | 62578570012 |
| 20 | 124173063123 |
| 21 | 310924696258 |
| 22 | 1367871848155 |