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) |
|---|---|
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 6 |
| 8 | 6 |
| 9 | 16 |
| 10 | 2 |
| 11 | 44 |
| 12 | 1 |
| 13 | 232 |
| 14 | 84 |
| 15 | 60 |
| 16 | 138 |
| 17 | 133 |
| 18 | 144 |
| 19 | 336 |
| 20 | 10 |
| 21 | 420 |
| 22 | 396 |
| 23 | 28656 |
| 24 | 66 |
| 25 | 1500 |
| 26 | 3016 |
| 27 | 5616 |
| 28 | 84 |
| 29 | 514228 |
| 30 | 60 |
| 31 | 335824 |
| 32 | 152214 |
| 33 | 9900 |
| 34 | 67830 |
| 35 | 70980 |
| 36 | 7632 |
| 37 | 4440 |
| 38 | 261744 |
| 39 | 27144 |
| 40 | 30 |
| 41 | 504628 |
| 42 | 420 |
| 43 | 108373609 |
| 44 | 47124 |
| 45 | 9120 |
| 46 | 3295440 |
| 47 | 2971215072 |
| 48 | 836418 |