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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 13 |
| 3 | 21 |
| 4 | 34 |
| 5 | 610 |
| 6 | 196418 |
| 7 | 1134903170 |
| 8 | 20365011074 |
| 9 | 15635695580168194910579363790217849593217 |
| 10 | 1049252690665646467530632231274619718410203796555123147644873726135009824265250 |