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 | 8 |
| 4 | 44 |
| 5 | 140 |
| 6 | 340 |
| 7 | 700 |
| 8 | 1288 |
| 9 | 2184 |
| 10 | 3480 |
| 11 | 5280 |
| 12 | 7700 |
| 13 | 10868 |
| 14 | 14924 |
| 15 | 20020 |
| 16 | 26320 |
| 17 | 34000 |
| 18 | 43248 |
| 19 | 54264 |
| 20 | 67260 |
| 21 | 82460 |
| 22 | 100100 |
| 23 | 120428 |
| 24 | 143704 |
| 25 | 170200 |
| 26 | 200200 |
| 27 | 234000 |
| 28 | 271908 |
| 29 | 314244 |
| 30 | 361340 |
| 31 | 413540 |
| 32 | 471200 |
| 33 | 534688 |
| 34 | 604384 |