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 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 22 |
| 5 | 31 |
| 6 | 40 |
| 7 | 50 |
| 8 | 60 |
| 9 | 151 |
| 10 | 242 |
| 11 | 332 |
| 12 | 422 |
| 13 | 513 |
| 14 | 604 |
| 15 | 686 |
| 16 | 768 |
| 17 | 849 |
| 18 | 930 |
| 19 | 1012 |
| 20 | 1094 |
| 21 | 1185 |
| 22 | 1276 |
| 23 | 1366 |
| 24 | 1456 |
| 25 | 1547 |
| 26 | 1638 |
| 27 | 2458 |
| 28 | 3278 |
| 29 | 4097 |
| 30 | 4916 |
| 31 | 5736 |
| 32 | 6556 |
| 33 | 7367 |
| 34 | 8178 |
| 35 | 8988 |
| 36 | 9798 |
| 37 | 10609 |
| 38 | 11420 |
| 39 | 12240 |
| 40 | 13060 |
| 41 | 13879 |
| 42 | 14698 |
| 43 | 15518 |
| 44 | 16338 |