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 | 47 |
| 3 | 6931 |
| 4 | 238657 |
| 5 | 4563655 |
| 6 | 526760263 |
| 7 | 45934377581 |
| 8 | 2852342564497 |
| 9 | 105651280880749 |
| 10 | 4335127472172929 |
| 11 | 186521117762900387 |
| 12 | 61393482232562091673 |
| 13 | 3255023127143379846869 |
| 14 | 3255958701070954680689 |