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 | 4 |
2 | 18 |
3 | 600 |
4 | 35280 |
5 | 439084800 |
6 | 80951270400 |
7 | 6046686277632000 |
8 | 2311256907767808000 |
9 | 594596384994354462720000 |
10 | 256411097818451356681764864000000 |
11 | 254907998279515607349492449280000000 |
12 | 509258864375374766713691244518493388800000000 |
13 | 1371553591139716091434972544191070818271232000000000 |