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 | 2 |
| 1 | 11 |
| 2 | 41 |
| 3 | 19 |
| 4 | 71 |
| 5 | 367 |
| 6 | 587 |
| 7 | 131 |
| 8 | 1151 |
| 9 | 1987 |
| 10 | 4253 |
| 11 | 8831 |
| 12 | 11839 |
| 13 | 117497 |
| 14 | 12269 |
| 15 | 28279 |
| 16 | 297793 |
| 17 | 167711 |
| 18 | 1748653 |
| 19 | 1427297 |
| 20 | 7655719 |
| 21 | 13992553 |
| 22 | 4594229 |
| 23 | 12932441 |
| 24 | 54321763 |
| 25 | 32833217 |
| 26 | 112155839 |
| 27 | 231132271 |
| 28 | 211119257 |
| 29 | 1154494127 |
| 30 | 137764883 |