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 | 2 |
| 4 | 5 |
| 5 | 14 |
| 6 | 23 |
| 7 | 46 |
| 8 | 71 |
| 9 | 115 |
| 10 | 174 |
| 11 | 263 |
| 12 | 371 |
| 13 | 542 |
| 14 | 756 |
| 15 | 1044 |
| 16 | 1432 |
| 17 | 1947 |
| 18 | 2605 |
| 19 | 3478 |
| 20 | 4588 |
| 21 | 6020 |
| 22 | 7863 |
| 23 | 10182 |
| 24 | 13114 |
| 25 | 16820 |
| 26 | 21480 |
| 27 | 27254 |
| 28 | 34489 |
| 29 | 43423 |
| 30 | 54491 |
| 31 | 68103 |
| 32 | 84864 |
| 33 | 105318 |
| 34 | 130408 |
| 35 | 160828 |
| 36 | 197923 |
| 37 | 242774 |
| 38 | 297141 |
| 39 | 362531 |
| 40 | 441456 |
| 41 | 536062 |
| 42 | 649695 |