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 | 2 |
2 | 139392 |
3 | 305013568273920000 |
4 | 1174837791623127613548781790822400000000 |
5 | 139642003782073074626249921818187528362524804267528306032640000000000000 |