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 | 21840 |
| 2 | 43680 |
| 3 | 57120 |
| 4 | 73080 |
| 5 | 87360 |
| 6 | 101640 |
| 7 | 127512 |
| 8 | 128520 |
| 9 | 130200 |
| 10 | 162792 |
| 11 | 173712 |
| 12 | 181608 |
| 13 | 184800 |
| 14 | 196560 |
| 15 | 200928 |
| 16 | 221760 |
| 17 | 229320 |
| 18 | 231840 |
| 19 | 240240 |
| 20 | 271320 |
| 21 | 290472 |
| 22 | 310128 |
| 23 | 327600 |
| 24 | 350280 |
| 25 | 370272 |
| 26 | 426360 |
| 27 | 442680 |
| 28 | 461472 |
| 29 | 471240 |
| 30 | 494760 |