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 | 1 |
| 2 | 10 |
| 3 | 167 |
| 4 | 4030 |
| 5 | 130187 |
| 6 | 5362052 |
| 7 | 272062457 |
| 8 | 16573460092 |
| 9 | 1188168923929 |
| 10 | 98653699675128 |
| 11 | 9363400084014583 |