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 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 1 |
| 22 | 8 |
| 23 | 12 |
| 24 | 26 |
| 25 | 160 |
| 26 | 441 |
| 27 | 1152 |
| 28 | 3001 |
| 29 | 7901 |
| 30 | 20566 |
| 31 | 54541 |
| 32 | 144161 |
| 33 | 378197 |
| 34 | 990981 |
| 35 | 2578081 |
| 36 | 6674067 |
| 37 | 17086918 |