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 | 4 |
| 5 | 3 |
| 6 | 1 |
| 7 | 26 |
| 8 | 19 |
| 9 | 6 |
| 10 | 1 |
| 11 | 236 |
| 12 | 170 |
| 13 | 55 |
| 14 | 10 |
| 15 | 1 |
| 16 | 2752 |
| 17 | 1966 |
| 18 | 645 |
| 19 | 125 |
| 20 | 15 |
| 21 | 1 |
| 22 | 39208 |
| 23 | 27860 |
| 24 | 9226 |
| 25 | 1855 |
| 26 | 245 |
| 27 | 21 |
| 28 | 1 |
| 29 | 660032 |
| 30 | 467244 |
| 31 | 155764 |
| 32 | 32081 |
| 33 | 4480 |
| 34 | 434 |
| 35 | 28 |
| 36 | 1 |
| 37 | 12818912 |
| 38 | 9049584 |
| 39 | 3031876 |
| 40 | 635124 |
| 41 | 92001 |
| 42 | 9576 |
| 43 | 714 |
| 44 | 36 |
| 45 | 1 |
| 46 | 282137824 |
| 47 | 198754016 |
| 48 | 66845340 |
| 49 | 14180440 |
| 50 | 2108085 |
| 51 | 230097 |
| 52 | 18690 |
| 53 | 1110 |
| 54 | 45 |
| 55 | 1 |