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 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 14 |
| 9 | 18 |
| 10 | 18 |
| 11 | 16 |
| 12 | 67 |
| 13 | 67 |
| 14 | 66 |
| 15 | 72 |
| 16 | 84 |
| 17 | 99 |
| 18 | 117 |
| 19 | 138 |
| 20 | 159 |
| 21 | 468 |
| 22 | 516 |
| 23 | 578 |
| 24 | 679 |
| 25 | 810 |
| 26 | 933 |
| 27 | 1018 |
| 28 | 1072 |
| 29 | 1138 |
| 30 | 1262 |
| 31 | 1448 |
| 32 | 4745 |
| 33 | 5196 |
| 34 | 5851 |
| 35 | 6630 |
| 36 | 7382 |
| 37 | 8031 |
| 38 | 8649 |
| 39 | 9405 |
| 40 | 10409 |
| 41 | 11569 |
| 42 | 12649 |
| 43 | 13530 |
| 44 | 14378 |
| 45 | 51022 |
| 46 | 55567 |
| 47 | 60439 |
| 48 | 65906 |
| 49 | 71953 |
| 50 | 78283 |