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 | 64 |
| 3 | 784 |
| 4 | 4368 |
| 5 | 16368 |
| 6 | 48048 |
| 7 | 119392 |
| 8 | 262752 |
| 9 | 527136 |
| 10 | 983136 |
| 11 | 1728496 |
| 12 | 2894320 |
| 13 | 4651920 |
| 14 | 7220304 |
| 15 | 10874304 |
| 16 | 15953344 |
| 17 | 22870848 |
| 18 | 32124288 |
| 19 | 44305872 |
| 20 | 60113872 |
| 21 | 80364592 |
| 22 | 106004976 |
| 23 | 138125856 |
| 24 | 177975840 |
| 25 | 226975840 |
| 26 | 286734240 |
| 27 | 359062704 |
| 28 | 445992624 |
| 29 | 549792208 |
| 30 | 672984208 |
| 31 | 818364288 |
| 32 | 989020032 |
| 33 | 1188350592 |
| 34 | 1420086976 |
| 35 | 1688312976 |
| 36 | 1997486736 |
| 37 | 2352462960 |
| 38 | 2758515760 |
| 39 | 3221362144 |
| 40 | 3747186144 |