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 | 16 |
| 2 | 98 |
| 3 | 742 |
| 4 | 4633 |
| 5 | 32911 |
| 6 | 221420 |
| 7 | 1519630 |
| 8 | 10322924 |
| 9 | 70546581 |
| 10 | 480682141 |
| 11 | 3279483836 |
| 12 | 22360879158 |
| 13 | 152513668108 |
| 14 | 1040062673807 |
| 15 | 7093214269529 |
| 16 | 48373908268204 |
| 17 | 329903456068580 |
| 18 | 2249876994245104 |
| 19 | 15343785763900111 |