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 | 8 |
| 4 | 34 |
| 5 | 106 |
| 6 | 430 |
| 7 | 1616 |
| 8 | 6594 |
| 9 | 26588 |
| 10 | 110188 |
| 11 | 457964 |
| 12 | 1925498 |
| 13 | 8135692 |
| 14 | 34597729 |
| 15 | 147780810 |