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) |
|---|---|
| 10 | 1 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 16796 |
| 21 | 58786 |
| 22 | 149226 |
| 23 | 326876 |
| 24 | 653752 |
| 25 | 1225785 |
| 26 | 2187185 |
| 27 | 3749460 |
| 28 | 6216210 |
| 29 | 10015005 |
| 30 | 7661738955 |
| 31 | 54722507580 |
| 32 | 395948080320 |
| 33 | 1833749903700 |
| 34 | 8617567868184 |
| 35 | 32552623293036 |
| 36 | 125052931581776 |
| 37 | 418634577697116 |
| 38 | 1427554615084576 |