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 | 0 |
| 2 | 12 |
| 3 | 84 |
| 4 | 324 |
| 5 | 924 |
| 6 | 2184 |
| 7 | 4536 |
| 8 | 8568 |
| 9 | 15048 |
| 10 | 24948 |
| 11 | 39468 |
| 12 | 60060 |
| 13 | 88452 |
| 14 | 126672 |
| 15 | 177072 |
| 16 | 242352 |
| 17 | 325584 |
| 18 | 430236 |
| 19 | 560196 |
| 20 | 719796 |
| 21 | 913836 |
| 22 | 1147608 |
| 23 | 1426920 |
| 24 | 1758120 |
| 25 | 2148120 |
| 26 | 2604420 |
| 27 | 3135132 |
| 28 | 3749004 |
| 29 | 4455444 |
| 30 | 5264544 |
| 31 | 6187104 |
| 32 | 7234656 |
| 33 | 8419488 |
| 34 | 9754668 |