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 | 4 |
| 4 | 5 |
| 5 | 6 |
| 6 | 10 |
| 7 | 12 |
| 8 | 46 |
| 9 | 1830 |
| 10 | 2086 |
| 11 | 6000 |
| 12 | 7681 |
| 13 | 8242 |
| 14 | 15204 |
| 15 | 43698 |
| 16 | 52054 |
| 17 | 154490 |
| 18 | 211052 |
| 19 | 392767 |
| 20 | 4309540 |
| 21 | 6452151 |
| 22 | 8773101 |
| 23 | 15166410 |
| 24 | 26552623 |
| 25 | 176656106 |
| 26 | 180281161 |
| 27 | 568507964 |
| 28 | 608235488 |
| 29 | 620790480 |
| 30 | 1053296976 |
| 31 | 1627363527 |
| 32 | 3740702866 |
| 33 | 20254119186 |