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 | 4 |
| 6 | 13 |
| 7 | 98 |
| 8 | 415 |
| 9 | 1151 |
| 10 | 2471 |
| 11 | 4385 |
| 12 | 6893 |
| 13 | 9995 |
| 14 | 13691 |
| 15 | 17981 |
| 16 | 22865 |
| 17 | 28343 |
| 18 | 34415 |
| 19 | 41081 |
| 20 | 48341 |
| 21 | 56195 |
| 22 | 64643 |
| 23 | 73685 |
| 24 | 83321 |
| 25 | 93551 |
| 26 | 104375 |
| 27 | 115793 |
| 28 | 127805 |
| 29 | 140411 |
| 30 | 153611 |
| 31 | 167405 |
| 32 | 181793 |
| 33 | 196775 |
| 34 | 212351 |
| 35 | 228521 |
| 36 | 245285 |
| 37 | 262643 |
| 38 | 280595 |