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 | 42 |
| 2 | 396 |
| 3 | 1656 |
| 4 | 4740 |
| 5 | 10890 |
| 6 | 21672 |
| 7 | 38976 |
| 8 | 65016 |
| 9 | 102330 |
| 10 | 153780 |
| 11 | 222552 |
| 12 | 312156 |
| 13 | 426426 |
| 14 | 569520 |
| 15 | 745920 |
| 16 | 960432 |
| 17 | 1218186 |
| 18 | 1524636 |
| 19 | 1885560 |
| 20 | 2307060 |
| 21 | 2795562 |
| 22 | 3357816 |
| 23 | 4000896 |
| 24 | 4732200 |
| 25 | 5559450 |
| 26 | 6490692 |
| 27 | 7534296 |
| 28 | 8698956 |
| 29 | 9993690 |
| 30 | 11427840 |
| 31 | 13011072 |
| 32 | 14753376 |
| 33 | 16665066 |
| 34 | 18756780 |
| 35 | 21039480 |