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) |
|---|---|
| 8 | 0 |
| 9 | 3 |
| 10 | 11 |
| 11 | 35 |
| 12 | 101 |
| 13 | 275 |
| 14 | 669 |
| 15 | 1486 |
| 16 | 2970 |
| 17 | 5474 |
| 18 | 9514 |
| 19 | 16071 |
| 20 | 26652 |
| 21 | 43301 |
| 22 | 68207 |
| 23 | 103901 |
| 24 | 153339 |
| 25 | 220576 |
| 26 | 311048 |
| 27 | 432343 |
| 28 | 594218 |
| 29 | 809436 |
| 30 | 1093733 |
| 31 | 1466746 |
| 32 | 1951992 |
| 33 | 2577872 |
| 34 | 3377119 |
| 35 | 4387788 |
| 36 | 5652659 |
| 37 | 7220623 |
| 38 | 9146776 |
| 39 | 11494964 |
| 40 | 14338214 |
| 41 | 17762174 |
| 42 | 21865783 |