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 | 6 |
| 3 | 1 |
| 4 | 56 |
| 5 | 12 |
| 6 | 1 |
| 7 | 616 |
| 8 | 148 |
| 9 | 18 |
| 10 | 1 |
| 11 | 7392 |
| 12 | 1904 |
| 13 | 276 |
| 14 | 24 |
| 15 | 1 |
| 16 | 93632 |
| 17 | 25312 |
| 18 | 4080 |
| 19 | 440 |
| 20 | 30 |
| 21 | 1 |
| 22 | 1230592 |
| 23 | 344960 |
| 24 | 59808 |
| 25 | 7360 |
| 26 | 640 |
| 27 | 36 |
| 28 | 1 |
| 29 | 16612992 |
| 30 | 4792128 |
| 31 | 876960 |
| 32 | 118224 |
| 33 | 11960 |
| 34 | 876 |
| 35 | 42 |
| 36 | 1 |
| 37 | 228890112 |
| 38 | 67586816 |
| 39 | 12900416 |
| 40 | 1860992 |
| 41 | 209200 |
| 42 | 18096 |
| 43 | 1148 |