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 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 8 |
| 5 | 14 |
| 6 | 41 |
| 7 | 270 |
| 8 | 277 |
| 9 | 1595 |
| 10 | 5899 |
| 11 | 6320 |
| 12 | 6668 |
| 13 | 117221 |
| 14 | 180037 |
| 15 | 295677 |
| 16 | 587152 |
| 17 | 703625 |
| 18 | 4397877 |
| 19 | 12151726 |
| 20 | 29573235 |