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 | 1 |
| 2 | 7 |
| 3 | 93 |
| 4 | 1419 |
| 5 | 25225 |
| 6 | 472037 |
| 7 | 9501737 |
| 8 | 196190781 |
| 9 | 4219610242 |
| 10 | 92198459515 |
| 11 | 2068590840349 |
| 12 | 46897782768404 |
| 13 | 1083052539395723 |
| 14 | 25199771186287195 |
| 15 | 594383312662808405 |
| 16 | 14098935496013599680 |
| 17 | 337939791145403719897 |