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 | 1 |
2 | 2 |
3 | 258 |
4 | 13380 |
5 | 2591940 |
6 | 4582623240 |
7 | 4616028796680 |
8 | 6229088692170120 |
9 | 15072293332114590600 |
10 | 159846322935857039370000 |
11 | 1733855206389212577000330000 |
12 | 17554952499518858027710809780000 |
13 | 183908030642450770233388352642100000 |