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 | 31710 |
| 3 | 63570 |
| 4 | 202635 |
| 5 | 405405 |
| 6 | 534600 |
| 7 | 561330 |
| 8 | 589305 |
| 9 | 666945 |
| 10 | 799350 |
| 11 | 903045 |
| 12 | 979125 |
| 13 | 1082115 |
| 14 | 1122660 |
| 15 | 1164735 |
| 16 | 1303035 |
| 17 | 1424475 |
| 18 | 1620645 |
| 19 | 1669995 |
| 20 | 1892100 |
| 21 | 1981020 |
| 22 | 2044440 |
| 23 | 2164230 |
| 24 | 2222415 |
| 25 | 2329470 |
| 26 | 2332125 |
| 27 | 2447445 |
| 28 | 2448855 |