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 | 4 |
| 3 | 1 |
| 4 | 16 |
| 5 | 16 |
| 6 | 120 |
| 7 | 8 |
| 8 | 728 |
| 9 | 92 |
| 10 | 8 |
| 11 | 2 |
| 12 | 840 |
| 13 | 24 |
| 14 | 436 |
| 15 | 10188 |
| 16 | 128 |
| 17 | 12 |
| 18 | 224 |
| 19 | 8424 |
| 20 | 312 |
| 21 | 72 |
| 22 | 192 |
| 23 | 8784 |
| 24 | 368 |
| 25 | 56 |
| 26 | 224 |
| 27 | 14500 |
| 28 | 280 |
| 29 | 10880 |
| 30 | 240 |