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 | 16 |
| 3 | 98 |
| 4 | 643 |
| 5 | 3773 |
| 6 | 23091 |
| 7 | 154228 |
| 8 | 1050811 |
| 9 | 7236644 |
| 10 | 51776044 |
| 11 | 383107149 |
| 12 | 2907310903 |
| 13 | 22583670553 |
| 14 | 180085426836 |
| 15 | 1470632881207 |