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 | 6 |
| 2 | 90 |
| 3 | 630 |
| 4 | 660 |
| 5 | 1170 |
| 6 | 2190 |
| 7 | 3780 |
| 8 | 6420 |
| 9 | 8940 |
| 10 | 9030 |
| 11 | 13260 |
| 12 | 16470 |
| 13 | 24150 |
| 14 | 28800 |
| 15 | 29610 |
| 16 | 39990 |
| 17 | 56580 |
| 18 | 56910 |
| 19 | 71610 |
| 20 | 83460 |
| 21 | 94530 |
| 22 | 114450 |
| 23 | 157830 |
| 24 | 159060 |
| 25 | 171180 |
| 26 | 177360 |
| 27 | 190500 |
| 28 | 197910 |
| 29 | 268050 |
| 30 | 315840 |
| 31 | 395520 |
| 32 | 435240 |
| 33 | 440910 |
| 34 | 513570 |
| 35 | 536010 |
| 36 | 539310 |
| 37 | 557340 |
| 38 | 635130 |