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 | 857 |
2 | 0 |
3 | 230 |
4 | 41176470 |
5 | 473684210 |
6 | 56521739130 |
7 | 65517241379310 |
8 | 78723404255319148936170 |
9 | 83050847457627118644067796610 |
10 | 836065573770491803278688524590 |
11 | 8630 |
12 | 8876404494382022471910 |