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 | 44 |
| 6 | 264 |
| 7 | 924 |
| 8 | 2464 |
| 9 | 5544 |
| 10 | 11088 |
| 11 | 20328 |
| 12 | 34848 |
| 13 | 56628 |
| 14 | 88088 |
| 15 | 132132 |
| 16 | 192192 |
| 17 | 272272 |
| 18 | 376992 |
| 19 | 511632 |
| 20 | 682176 |
| 21 | 895356 |
| 22 | 1158696 |
| 23 | 1480556 |
| 24 | 1870176 |
| 25 | 2337720 |
| 26 | 2894320 |
| 27 | 3552120 |
| 28 | 4324320 |
| 29 | 5225220 |
| 30 | 6270264 |
| 31 | 7476084 |
| 32 | 8860544 |
| 33 | 10442784 |
| 34 | 12243264 |
| 35 | 14283808 |
| 36 | 16587648 |