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 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 64 |
5 | 8120 |
6 | 131860608 |
7 | 34774439752390528 |
8 | 2418523320185277177863741363978240 |
9 | 11698510100560033501377640350194228137500049288930688305497138757632 |