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 | 12 |
| 2 | 56 |
| 3 | 132 |
| 4 | 240 |
| 5 | 380 |
| 6 | 552 |
| 7 | 756 |
| 8 | 992 |
| 9 | 1260 |
| 10 | 1560 |
| 11 | 1892 |
| 12 | 2256 |
| 13 | 2652 |
| 14 | 3080 |
| 15 | 3540 |
| 16 | 4032 |
| 17 | 4556 |
| 18 | 5112 |
| 19 | 5700 |
| 20 | 6320 |
| 21 | 6972 |
| 22 | 7656 |
| 23 | 8372 |
| 24 | 9120 |
| 25 | 9900 |
| 26 | 10712 |
| 27 | 11556 |
| 28 | 12432 |
| 29 | 13340 |
| 30 | 14280 |
| 31 | 15252 |
| 32 | 16256 |
| 33 | 17292 |
| 34 | 18360 |
| 35 | 19460 |
| 36 | 20592 |
| 37 | 21756 |
| 38 | 22952 |
| 39 | 24180 |