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 | 86 |
| 4 | 544 |
| 5 | 1854 |
| 6 | 4688 |
| 7 | 9910 |
| 8 | 18576 |
| 9 | 31934 |
| 10 | 51424 |
| 11 | 78678 |
| 12 | 115520 |
| 13 | 163966 |
| 14 | 226224 |
| 15 | 304694 |
| 16 | 401968 |
| 17 | 520830 |
| 18 | 664256 |
| 19 | 835414 |
| 20 | 1037664 |
| 21 | 1274558 |
| 22 | 1549840 |
| 23 | 1867446 |
| 24 | 2231504 |
| 25 | 2646334 |
| 26 | 3116448 |
| 27 | 3646550 |
| 28 | 4241536 |
| 29 | 4906494 |
| 30 | 5646704 |
| 31 | 6467638 |
| 32 | 7374960 |
| 33 | 8374526 |
| 34 | 9472384 |
| 35 | 10674774 |