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 | 45 |
| 2 | 13410 |
| 3 | 15855 |
| 4 | 31710 |
| 5 | 31785 |
| 6 | 63570 |
| 7 | 74025 |
| 8 | 85230 |
| 9 | 151830 |
| 10 | 202635 |
| 11 | 267300 |
| 12 | 280665 |
| 13 | 399675 |
| 14 | 405405 |
| 15 | 455250 |
| 16 | 466560 |
| 17 | 478170 |
| 18 | 480240 |
| 19 | 511335 |
| 20 | 534600 |
| 21 | 539475 |
| 22 | 561330 |
| 23 | 569520 |
| 24 | 589305 |
| 25 | 666945 |
| 26 | 716460 |
| 27 | 743160 |
| 28 | 748215 |
| 29 | 766785 |
| 30 | 799350 |
| 31 | 860835 |