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 | 5 |
| 6 | 2 |
| 7 | 6 |
| 8 | 26 |
| 9 | 26 |
| 10 | 6 |
| 11 | 24 |
| 12 | 154 |
| 13 | 269 |
| 14 | 154 |
| 15 | 24 |
| 16 | 120 |
| 17 | 1044 |
| 18 | 2724 |
| 19 | 2724 |
| 20 | 1044 |
| 21 | 120 |
| 22 | 720 |
| 23 | 8028 |
| 24 | 28636 |
| 25 | 42881 |
| 26 | 28636 |
| 27 | 8028 |
| 28 | 720 |
| 29 | 5040 |
| 30 | 69264 |
| 31 | 319024 |
| 32 | 655248 |
| 33 | 655248 |
| 34 | 319024 |
| 35 | 69264 |
| 36 | 5040 |
| 37 | 40320 |
| 38 | 663696 |
| 39 | 3793212 |
| 40 | 10095228 |
| 41 | 13861809 |
| 42 | 10095228 |
| 43 | 3793212 |
| 44 | 663696 |
| 45 | 40320 |