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 | 15 |
| 3 | 42 |
| 4 | 82 |
| 5 | 135 |
| 6 | 201 |
| 7 | 280 |
| 8 | 372 |
| 9 | 477 |
| 10 | 595 |
| 11 | 726 |
| 12 | 870 |
| 13 | 1027 |
| 14 | 1197 |
| 15 | 1380 |
| 16 | 1576 |
| 17 | 1785 |
| 18 | 2007 |
| 19 | 2242 |
| 20 | 2490 |
| 21 | 2751 |
| 22 | 3025 |
| 23 | 3312 |
| 24 | 3612 |
| 25 | 3925 |
| 26 | 4251 |
| 27 | 4590 |
| 28 | 4942 |
| 29 | 5307 |
| 30 | 5685 |
| 31 | 6076 |
| 32 | 6480 |
| 33 | 6897 |
| 34 | 7327 |
| 35 | 7770 |
| 36 | 8226 |
| 37 | 8695 |
| 38 | 9177 |
| 39 | 9672 |
| 40 | 10180 |
| 41 | 10701 |