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 | 16 |
| 2 | 272 |
| 3 | 1568 |
| 4 | 5664 |
| 5 | 15664 |
| 6 | 36400 |
| 7 | 74816 |
| 8 | 140352 |
| 9 | 245328 |
| 10 | 405328 |
| 11 | 639584 |
| 12 | 971360 |
| 13 | 1428336 |
| 14 | 2042992 |
| 15 | 2852992 |
| 16 | 3901568 |
| 17 | 5237904 |
| 18 | 6917520 |
| 19 | 9002656 |
| 20 | 11562656 |
| 21 | 14674352 |
| 22 | 18422448 |
| 23 | 22899904 |
| 24 | 28208320 |
| 25 | 34458320 |
| 26 | 41769936 |
| 27 | 50272992 |
| 28 | 60107488 |
| 29 | 71423984 |
| 30 | 84383984 |