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 | 0 |
| 2 | 12 |
| 3 | 68 |
| 4 | 235 |
| 5 | 636 |
| 6 | 1478 |
| 7 | 3088 |
| 8 | 5958 |
| 9 | 10800 |
| 10 | 18612 |
| 11 | 30756 |
| 12 | 49049 |
| 13 | 75868 |
| 14 | 114270 |
| 15 | 168128 |
| 16 | 242284 |
| 17 | 342720 |
| 18 | 476748 |
| 19 | 653220 |
| 20 | 882759 |
| 21 | 1178012 |
| 22 | 1553926 |
| 23 | 2028048 |
| 24 | 2620850 |
| 25 | 3356080 |
| 26 | 4261140 |
| 27 | 5367492 |
| 28 | 6711093 |
| 29 | 8332860 |
| 30 | 10279166 |
| 31 | 12602368 |