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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 14 |
| 5 | 1 |
| 6 | 1 |
| 7 | 135 |
| 8 | 135 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1228 |
| 12 | 5478 |
| 13 | 1228 |
| 14 | 1 |
| 15 | 1 |
| 16 | 11069 |
| 17 | 165826 |
| 18 | 165826 |
| 19 | 11069 |
| 20 | 1 |
| 21 | 1 |
| 22 | 99642 |
| 23 | 4494351 |
| 24 | 13180268 |
| 25 | 4494351 |
| 26 | 99642 |
| 27 | 1 |
| 28 | 1 |
| 29 | 896803 |
| 30 | 116294673 |
| 31 | 834687179 |
| 32 | 834687179 |
| 33 | 116294673 |
| 34 | 896803 |
| 35 | 1 |
| 36 | 1 |
| 37 | 8071256 |
| 38 | 2949965020 |
| 39 | 47152124264 |
| 40 | 109645021894 |
| 41 | 47152124264 |
| 42 | 2949965020 |
| 43 | 8071256 |
| 44 | 1 |