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) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 10 |
| 3 | 504 |
| 4 | 25242 |
| 5 | 1110 |
| 6 | 28782 |
| 7 | 46764 |
| 8 | 46254 |
| 9 | 86058 |
| 10 | 50094 |
| 11 | 47874 |
| 12 | 107880 |
| 13 | 108180 |
| 14 | 110100 |
| 15 | 108990 |
| 16 | 107070 |
| 17 | 109800 |
| 18 | 2726262 |
| 19 | 2830272 |
| 20 | 2698962 |
| 21 | 3029292 |
| 22 | 2900982 |
| 23 | 2799972 |
| 24 | 2979792 |
| 25 | 3100002 |
| 26 | 2998992 |
| 27 | 4498944 |
| 28 | 4409034 |
| 29 | 4709064 |
| 30 | 4510044 |
| 31 | 4916184 |
| 32 | 4790874 |
| 33 | 4787874 |
| 34 | 4869684 |
| 35 | 4959594 |
| 36 | 4896984 |
| 37 | 4891884 |