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 | 6 |
| 2 | 30 |
| 3 | 72 |
| 4 | 132 |
| 5 | 210 |
| 6 | 306 |
| 7 | 420 |
| 8 | 552 |
| 9 | 702 |
| 10 | 870 |
| 11 | 1056 |
| 12 | 1260 |
| 13 | 1482 |
| 14 | 1722 |
| 15 | 1980 |
| 16 | 2256 |
| 17 | 2550 |
| 18 | 2862 |
| 19 | 3192 |
| 20 | 3540 |
| 21 | 3906 |
| 22 | 4290 |
| 23 | 4692 |
| 24 | 5112 |
| 25 | 5550 |
| 26 | 6006 |
| 27 | 6480 |
| 28 | 6972 |
| 29 | 7482 |
| 30 | 8010 |
| 31 | 8556 |
| 32 | 9120 |
| 33 | 9702 |
| 34 | 10302 |
| 35 | 10920 |
| 36 | 11556 |
| 37 | 12210 |
| 38 | 12882 |
| 39 | 13572 |
| 40 | 14280 |
| 41 | 15006 |
| 42 | 15750 |
| 43 | 16512 |
| 44 | 17292 |