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 | 58 |
| 4 | 556 |
| 5 | 7500 |
| 6 | 119224 |
| 7 | 2926752 |
| 8 | 111202694 |
| 9 | 5582239354 |
| 10 | 398193149976 |
| 11 | 43178426815216 |
| 12 | 6623459579619334 |
| 13 | 1414003622686654366 |
| 14 | 443957184641073369216 |