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 | 2 |
2 | 10 |
3 | 498 |
4 | 65040 |
5 | 33554370 |
6 | 68718945018 |
7 | 562949953421058 |
8 | 18446744065119682560 |
9 | 2417851639229258080977408 |
10 | 1267650600228227149696920981450 |
11 | 2658455991569831745807614120560685058 |
12 | 22300745198530623141526273539119741048774160 |