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 | 280 |
| 5 | 3792 |
| 6 | 17052 |
| 7 | 44464 |
| 8 | 92628 |
| 9 | 159328 |
| 10 | 245946 |
| 11 | 350386 |
| 12 | 472648 |
| 13 | 612732 |
| 14 | 770638 |
| 15 | 946366 |
| 16 | 1139916 |
| 17 | 1351288 |
| 18 | 1580482 |
| 19 | 1827498 |
| 20 | 2092336 |
| 21 | 2374996 |
| 22 | 2675478 |
| 23 | 2993782 |
| 24 | 3329908 |
| 25 | 3683856 |
| 26 | 4055626 |
| 27 | 4445218 |
| 28 | 4852632 |
| 29 | 5277868 |
| 30 | 5720926 |
| 31 | 6181806 |