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) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 17 |
| 9 | 25 |
| 10 | 40 |
| 11 | 72 |
| 12 | 106 |
| 13 | 169 |
| 14 | 305 |
| 15 | 449 |
| 16 | 716 |
| 17 | 1292 |
| 18 | 1902 |
| 19 | 3033 |
| 20 | 5473 |
| 21 | 8057 |
| 22 | 12848 |
| 23 | 23184 |
| 24 | 34130 |
| 25 | 54425 |
| 26 | 98209 |
| 27 | 144577 |
| 28 | 230548 |
| 29 | 416020 |
| 30 | 612438 |
| 31 | 976617 |
| 32 | 1762289 |
| 33 | 2594329 |
| 34 | 4137016 |
| 35 | 7465176 |
| 36 | 10989754 |
| 37 | 17524681 |
| 38 | 31622993 |
| 39 | 46553345 |