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 | 0 |
2 | 1 |
3 | 7 |
4 | 139 |
5 | 365641 |
6 | 39916801 |
7 | 1317933016441 |
8 | 355688356705921 |
9 | 53128667010491295649 |
10 | 10888872347627347035630931201 |
11 | 8841761993746245283777145088001 |
12 | 10333147966386144929666651337523200000001 |