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 | 2 |
| 2 | 12 |
| 3 | 65 |
| 4 | 388 |
| 5 | 2708 |
| 6 | 19969 |
| 7 | 155369 |
| 8 | 1250182 |
| 9 | 10345920 |
| 10 | 87545946 |
| 11 | 753285178 |
| 12 | 6571105993 |