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 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 10 |
| 5 | 12 |
| 6 | 30 |
| 7 | 40 |
| 8 | 82 |
| 9 | 110 |
| 10 | 190 |
| 11 | 260 |
| 12 | 422 |
| 13 | 570 |
| 14 | 860 |
| 15 | 1160 |
| 16 | 1690 |
| 17 | 2252 |
| 18 | 3170 |
| 19 | 4190 |
| 20 | 5760 |
| 21 | 7540 |
| 22 | 10142 |
| 23 | 13164 |
| 24 | 17450 |
| 25 | 22442 |
| 26 | 29300 |
| 27 | 37410 |
| 28 | 48282 |
| 29 | 61170 |
| 30 | 78132 |
| 31 | 98310 |
| 32 | 124444 |
| 33 | 155582 |
| 34 | 195310 |
| 35 | 242722 |
| 36 | 302570 |
| 37 | 373882 |
| 38 | 462954 |
| 39 | 569130 |
| 40 | 700570 |
| 41 | 856970 |