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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 5 |
| 7 | 4 |
| 8 | 3 |
| 9 | 7 |
| 10 | 11 |
| 11 | 5 |
| 12 | 29 |
| 13 | 155 |
| 14 | 224 |
| 15 | 639 |
| 16 | 3787 |
| 17 | 1837 |
| 18 | 2855 |
| 19 | 32393 |
| 20 | 97309 |
| 21 | 127512 |
| 22 | 1825907 |
| 23 | 13672693 |
| 24 | 12048382 |
| 25 | 61067879 |
| 26 | 1364331725 |
| 27 | 942450221 |
| 28 | 3863275086 |
| 29 | 126646632559 |
| 30 | 699156998051 |
| 31 | 2194555785960 |
| 32 | 61774183992421 |