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) |
|---|---|
| 6 | 1 |
| 7 | 9 |
| 8 | 42 |
| 9 | 132 |
| 10 | 334 |
| 11 | 728 |
| 12 | 1428 |
| 13 | 2584 |
| 14 | 4389 |
| 15 | 7084 |
| 16 | 10963 |
| 17 | 16380 |
| 18 | 23751 |
| 19 | 33563 |
| 20 | 46376 |
| 21 | 62832 |
| 22 | 83657 |
| 23 | 109668 |
| 24 | 141778 |
| 25 | 181001 |
| 26 | 228459 |
| 27 | 285384 |
| 28 | 353127 |
| 29 | 433160 |
| 30 | 527085 |
| 31 | 636636 |
| 32 | 763686 |
| 33 | 910252 |
| 34 | 1078500 |
| 35 | 1270752 |
| 36 | 1489488 |
| 37 | 1737355 |
| 38 | 2017169 |
| 39 | 2331924 |