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 | 2 |
| 2 | 4 |
| 3 | 12 |
| 4 | 1 |
| 5 | 40 |
| 6 | 48 |
| 7 | 112 |
| 8 | 1 |
| 9 | 288 |
| 10 | 320 |
| 11 | 704 |
| 12 | 1 |
| 13 | 1664 |
| 14 | 1792 |
| 15 | 3840 |
| 16 | 1 |
| 17 | 8704 |
| 18 | 9216 |
| 19 | 19456 |
| 20 | 1 |
| 21 | 43008 |
| 22 | 45056 |
| 23 | 94208 |
| 24 | 1 |
| 25 | 204800 |
| 26 | 212992 |
| 27 | 442368 |
| 28 | 1 |
| 29 | 950272 |
| 30 | 983040 |
| 31 | 2031616 |
| 32 | 1 |
| 33 | 4325376 |
| 34 | 4456448 |
| 35 | 9175040 |
| 36 | 1 |
| 37 | 19398656 |
| 38 | 19922944 |
| 39 | 40894464 |
| 40 | 1 |
| 41 | 85983232 |