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 | 1 |
| 2 | 364 |
| 3 | 1080 |
| 4 | 1782 |
| 5 | 8736 |
| 6 | 30256 |
| 7 | 86800 |
| 8 | 90768 |
| 9 | 149856 |
| 10 | 632400 |
| 11 | 828816 |
| 12 | 1033560 |
| 13 | 2467600 |
| 14 | 8182944 |
| 15 | 9587160 |
| 16 | 10593720 |
| 17 | 12239136 |
| 18 | 15487600 |
| 19 | 16702800 |
| 20 | 23194080 |
| 21 | 23556960 |
| 22 | 25371360 |
| 23 | 33330528 |
| 24 | 35746920 |
| 25 | 35889480 |
| 26 | 36036000 |
| 27 | 40753440 |
| 28 | 44013120 |
| 29 | 45890208 |
| 30 | 46462800 |
| 31 | 49035168 |