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 | 1 |
2 | 1 |
3 | -16 |
4 | -2048 |
5 | 1638400 |
6 | 7247757312 |
7 | -164995463643136 |
8 | -18446744073709551616 |
9 | 9803356117276277820358656 |
10 | 24178516392292583494123520000000 |
11 | -271732164163901599116133024293512544256 |
12 | -13717048991958695477963985711266803110069141504 |
13 | 3074347100178259797134292590832254504315406543889629184 |