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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 5 |
| 4 | 1 |
| 5 | 21 |
| 6 | 17 |
| 7 | 69 |
| 8 | 1 |
| 9 | 277 |
| 10 | 273 |
| 11 | 1349 |
| 12 | 257 |
| 13 | 5141 |
| 14 | 4113 |
| 15 | 16453 |
| 16 | 1 |
| 17 | 65813 |
| 18 | 65809 |
| 19 | 329029 |
| 20 | 65793 |
| 21 | 1381397 |
| 22 | 1118225 |
| 23 | 4538437 |
| 24 | 65537 |
| 25 | 18088213 |
| 26 | 17826065 |
| 27 | 88081733 |
| 28 | 16777473 |
| 29 | 335549461 |
| 30 | 268439569 |
| 31 | 1073758277 |
| 32 | 1 |
| 33 | 4295033109 |
| 34 | 4295033105 |