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 | 4 |
| 3 | 7 |
| 4 | 12 |
| 5 | 30 |
| 6 | 94 |
| 7 | 178 |
| 8 | 196 |
| 9 | 564 |
| 10 | 1801 |
| 11 | 3520 |
| 12 | 3538 |
| 13 | 8233 |
| 14 | 35161 |
| 15 | 37405 |
| 16 | 42330 |
| 17 | 70051 |
| 18 | 90792 |
| 19 | 124096 |
| 20 | 152670 |