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 | 6 |
| 3 | 32 |
| 4 | 295 |
| 5 | 3201 |
| 6 | 48321 |
| 7 | 828323 |
| 8 | 16910106 |
| 9 | 388005909 |
| 10 | 10019717653 |
| 11 | 285409876785 |
| 12 | 8920506515453 |
| 13 | 302901435774351 |
| 14 | 11113364096436947 |
| 15 | 437903477186179875 |
| 16 | 18447307498823123948 |
| 17 | 827244767844150424228 |
| 18 | 39346708569526147402819 |