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 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 8 |
| 9 | 10 |
| 10 | 13 |
| 11 | 19 |
| 12 | 26 |
| 13 | 37 |
| 14 | 69 |
| 15 | 77 |
| 16 | 81 |
| 17 | 214 |
| 18 | 242 |
| 19 | 255 |
| 20 | 900 |
| 21 | 1113 |
| 22 | 1833 |
| 23 | 3166 |
| 24 | 3566 |
| 25 | 4753 |
| 26 | 4849 |
| 27 | 4869 |
| 28 | 5005 |
| 29 | 7372 |
| 30 | 7702 |
| 31 | 10240 |
| 32 | 16100 |
| 33 | 18972 |
| 34 | 28574 |
| 35 | 33815 |
| 36 | 37820 |
| 37 | 70457 |
| 38 | 89482 |
| 39 | 106066 |
| 40 | 133603 |
| 41 | 154897 |
| 42 | 278325 |