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 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 9 |
| 4 | 107 |
| 5 | 151 |
| 6 | 835 |
| 7 | 1241 |
| 8 | 26291 |
| 9 | 40427 |
| 10 | 207897 |
| 11 | 327615 |
| 12 | 3296959 |
| 13 | 5293843 |
| 14 | 26189947 |
| 15 | 42685049 |
| 16 | 1666461763 |
| 17 | 2749521971 |
| 18 | 13266871709 |
| 19 | 22115585443 |
| 20 | 211386315749 |
| 21 | 355490397193 |
| 22 | 1684973959237 |
| 23 | 2855358497999 |
| 24 | 53747636888759 |