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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 5 |
| 7 | 11 |
| 8 | 22 |
| 9 | 40 |
| 10 | 70 |
| 11 | 116 |
| 12 | 187 |
| 13 | 292 |
| 14 | 448 |
| 15 | 670 |
| 16 | 988 |
| 17 | 1432 |
| 18 | 2051 |
| 19 | 2896 |
| 20 | 4052 |
| 21 | 5603 |
| 22 | 7687 |
| 23 | 10446 |
| 24 | 14096 |
| 25 | 18870 |
| 26 | 25108 |
| 27 | 33176 |
| 28 | 43601 |
| 29 | 56960 |
| 30 | 74051 |
| 31 | 95762 |
| 32 | 123300 |
| 33 | 158011 |
| 34 | 201692 |
| 35 | 256368 |
| 36 | 324682 |
| 37 | 409642 |
| 38 | 515116 |
| 39 | 645509 |
| 40 | 806430 |
| 41 | 1004292 |
| 42 | 1247146 |
| 43 | 1544237 |