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 | 22 |
| 2 | 130 |
| 3 | 184 |
| 4 | 1012 |
| 5 | 2272 |
| 6 | 18904 |
| 7 | 33664 |
| 8 | 70564 |
| 9 | 85936 |
| 10 | 100804 |
| 11 | 391612 |
| 12 | 527872 |
| 13 | 1090912 |
| 14 | 17619844 |
| 15 | 2147713024 |
| 16 | 6800695312 |
| 17 | 34360655872 |
| 18 | 549759483904 |
| 19 | 1661355408388 |
| 20 | 28502765343364 |
| 21 | 82994670582016 |
| 22 | 99249696661504 |
| 23 | 120646991405056 |
| 24 | 431202442356004 |
| 25 | 952413274955776 |