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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 15 |
| 6 | 51 |
| 7 | 63 |
| 8 | 363 |
| 9 | 437 |
| 10 | 729 |
| 11 | 1385 |
| 12 | 1388 |
| 13 | 1413 |
| 14 | 2807 |
| 15 | 5418 |
| 16 | 5422 |
| 17 | 5428 |
| 18 | 5435 |
| 19 | 5451 |
| 20 | 5537 |
| 21 | 10790 |
| 22 | 10795 |
| 23 | 10803 |
| 24 | 10871 |
| 25 | 21505 |
| 26 | 21507 |
| 27 | 21899 |
| 28 | 22081 |
| 29 | 42969 |
| 30 | 43073 |
| 31 | 43387 |
| 32 | 44069 |
| 33 | 171631 |
| 34 | 172889 |
| 35 | 342493 |
| 36 | 2747813 |
| 37 | 5464783 |
| 38 | 10908941 |
| 39 | 10911583 |
| 40 | 87259373 |
| 41 | 87327187 |
| 42 | 174579089 |