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 | 0 |
| 3 | 1 |
| 4 | 6 |
| 5 | 15 |
| 6 | 30 |
| 7 | 52 |
| 8 | 84 |
| 9 | 126 |
| 10 | 180 |
| 11 | 247 |
| 12 | 330 |
| 13 | 429 |
| 14 | 546 |
| 15 | 682 |
| 16 | 840 |
| 17 | 1020 |
| 18 | 1224 |
| 19 | 1453 |
| 20 | 1710 |
| 21 | 1995 |
| 22 | 2310 |
| 23 | 2656 |
| 24 | 3036 |
| 25 | 3450 |
| 26 | 3900 |
| 27 | 4387 |
| 28 | 4914 |
| 29 | 5481 |
| 30 | 6090 |
| 31 | 6742 |
| 32 | 7440 |
| 33 | 8184 |
| 34 | 8976 |
| 35 | 9817 |
| 36 | 10710 |
| 37 | 11655 |
| 38 | 12654 |
| 39 | 13708 |
| 40 | 14820 |
| 41 | 15990 |
| 42 | 17220 |
| 43 | 18511 |
| 44 | 19866 |
| 45 | 21285 |