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 | 3 |
| 4 | 9 |
| 5 | 18 |
| 6 | 33 |
| 7 | 53 |
| 8 | 81 |
| 9 | 116 |
| 10 | 161 |
| 11 | 215 |
| 12 | 281 |
| 13 | 358 |
| 14 | 449 |
| 15 | 553 |
| 16 | 673 |
| 17 | 808 |
| 18 | 961 |
| 19 | 1131 |
| 20 | 1321 |
| 21 | 1530 |
| 22 | 1761 |
| 23 | 2013 |
| 24 | 2289 |
| 25 | 2588 |
| 26 | 2913 |
| 27 | 3263 |
| 28 | 3641 |
| 29 | 4046 |
| 30 | 4481 |
| 31 | 4945 |
| 32 | 5441 |
| 33 | 5968 |
| 34 | 6529 |
| 35 | 7123 |
| 36 | 7753 |
| 37 | 8418 |
| 38 | 9121 |
| 39 | 9861 |
| 40 | 10641 |
| 41 | 11460 |
| 42 | 12321 |
| 43 | 13223 |
| 44 | 14169 |