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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 472 |
| 6 | 3504 |
| 7 | 10576 |
| 8 | 23340 |
| 9 | 40448 |
| 10 | 61900 |
| 11 | 87696 |
| 12 | 117836 |
| 13 | 152320 |
| 14 | 191148 |
| 15 | 234320 |
| 16 | 281836 |
| 17 | 333696 |
| 18 | 389900 |
| 19 | 450448 |
| 20 | 515340 |
| 21 | 584576 |
| 22 | 658156 |
| 23 | 736080 |
| 24 | 818348 |
| 25 | 904960 |
| 26 | 995916 |
| 27 | 1091216 |
| 28 | 1190860 |
| 29 | 1294848 |
| 30 | 1403180 |
| 31 | 1515856 |
| 32 | 1632876 |
| 33 | 1754240 |