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) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 1 |
| 5 | 7 |
| 6 | 14 |
| 7 | 12 |
| 8 | 9 |
| 9 | 46 |
| 10 | 98 |
| 11 | 80 |
| 12 | 64 |
| 13 | 313 |
| 14 | 674 |
| 15 | 546 |
| 16 | 441 |
| 17 | 2143 |
| 18 | 4622 |
| 19 | 3740 |
| 20 | 3025 |
| 21 | 14686 |
| 22 | 31682 |
| 23 | 25632 |
| 24 | 20736 |
| 25 | 100657 |
| 26 | 217154 |
| 27 | 175682 |
| 28 | 142129 |
| 29 | 689911 |
| 30 | 1488398 |
| 31 | 1204140 |
| 32 | 974169 |
| 33 | 4728718 |
| 34 | 10201634 |
| 35 | 8253296 |
| 36 | 6677056 |
| 37 | 32411113 |
| 38 | 69923042 |
| 39 | 56568930 |
| 40 | 45765225 |
| 41 | 222149071 |
| 42 | 479259662 |
| 43 | 387729212 |