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 | 54 |
2 | 4860 |
3 | 612360 |
4 | 99202320 |
5 | 19642059360 |
6 | 4596241890240 |
7 | 1240985310364800 |
8 | 379741504971628800 |
9 | 129871594700297049600 |
10 | 49091462796712284748800 |
11 | 20323865597838885886003200 |
12 | 9145739519027498648701440000 |
13 | 4444829406247364343268899840000 |