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 | 25200 |
| 2 | 97020 |
| 3 | 145530 |
| 4 | 499500 |
| 5 | 673380 |
| 6 | 749700 |
| 7 | 839160 |
| 8 | 1185030 |
| 9 | 1445850 |
| 10 | 1786995 |
| 11 | 1873080 |
| 12 | 2031120 |
| 13 | 2049300 |
| 14 | 2162160 |
| 15 | 2821500 |
| 16 | 3444000 |
| 17 | 3646350 |
| 18 | 4250070 |
| 19 | 4573800 |
| 20 | 4915680 |
| 21 | 4991220 |
| 22 | 5364450 |
| 23 | 5512860 |
| 24 | 6193440 |
| 25 | 11594520 |
| 26 | 11763675 |
| 27 | 12748725 |
| 28 | 13857480 |
| 29 | 14340690 |
| 30 | 15481830 |