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 | 84 |
| 3 | 270 |
| 4 | 624 |
| 5 | 1200 |
| 6 | 2052 |
| 7 | 3234 |
| 8 | 4800 |
| 9 | 6804 |
| 10 | 9300 |
| 11 | 12342 |
| 12 | 15984 |
| 13 | 20280 |
| 14 | 25284 |
| 15 | 31050 |
| 16 | 37632 |
| 17 | 45084 |
| 18 | 53460 |
| 19 | 62814 |
| 20 | 73200 |
| 21 | 84672 |
| 22 | 97284 |
| 23 | 111090 |
| 24 | 126144 |
| 25 | 142500 |
| 26 | 160212 |
| 27 | 179334 |
| 28 | 199920 |
| 29 | 222024 |
| 30 | 245700 |
| 31 | 271002 |
| 32 | 297984 |
| 33 | 326700 |
| 34 | 357204 |
| 35 | 389550 |
| 36 | 423792 |
| 37 | 459984 |