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 | 16 |
| 4 | 88 |
| 5 | 280 |
| 6 | 680 |
| 7 | 1400 |
| 8 | 2576 |
| 9 | 4368 |
| 10 | 6960 |
| 11 | 10560 |
| 12 | 15400 |
| 13 | 21736 |
| 14 | 29848 |
| 15 | 40040 |
| 16 | 52640 |
| 17 | 68000 |
| 18 | 86496 |
| 19 | 108528 |
| 20 | 134520 |
| 21 | 164920 |
| 22 | 200200 |
| 23 | 240856 |
| 24 | 287408 |
| 25 | 340400 |
| 26 | 400400 |
| 27 | 468000 |
| 28 | 543816 |
| 29 | 628488 |
| 30 | 722680 |
| 31 | 827080 |
| 32 | 942400 |
| 33 | 1069376 |
| 34 | 1208768 |