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 | 9 |
| 2 | 14 |
| 3 | 108 |
| 4 | 710 |
| 5 | 4978 |
| 6 | 35724 |
| 7 | 273032 |
| 8 | 2097356 |
| 9 | 16674554 |
| 10 | 135091242 |
| 11 | 1112325268 |
| 12 | 9296413365 |
| 13 | 77991481271 |
| 14 | 654495034497 |
| 15 | 5420117473932 |