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) |
|---|---|
| 1 | 630 |
| 2 | 990 |
| 3 | 2926 |
| 4 | 4950 |
| 5 | 5886 |
| 6 | 12720 |
| 7 | 24090 |
| 8 | 44850 |
| 9 | 60726 |
| 10 | 81810 |
| 11 | 107416 |
| 12 | 128778 |
| 13 | 152076 |
| 14 | 168490 |
| 15 | 177906 |
| 16 | 202566 |
| 17 | 217470 |
| 18 | 258840 |
| 19 | 277140 |
| 20 | 301476 |
| 21 | 314028 |
| 22 | 408156 |
| 23 | 499500 |
| 24 | 613278 |
| 25 | 695610 |
| 26 | 875826 |
| 27 | 903840 |
| 28 | 940506 |
| 29 | 1205128 |
| 30 | 1332528 |
| 31 | 1405326 |