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 | 60 |
| 2 | 780 |
| 3 | 2040 |
| 4 | 4200 |
| 5 | 12180 |
| 6 | 14760 |
| 7 | 15540 |
| 8 | 40260 |
| 9 | 65520 |
| 10 | 66780 |
| 11 | 92820 |
| 12 | 120120 |
| 13 | 189840 |
| 14 | 192720 |
| 15 | 199980 |
| 16 | 235620 |
| 17 | 277680 |
| 18 | 354960 |
| 19 | 453960 |
| 20 | 497640 |
| 21 | 595140 |
| 22 | 619020 |
| 23 | 643500 |
| 24 | 1021020 |
| 25 | 1063860 |
| 26 | 1075620 |
| 27 | 1265880 |
| 28 | 1484340 |
| 29 | 1609080 |
| 30 | 1761540 |