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 | 3 |
3 | 23 |
4 | 220 |
5 | 2800 |
6 | 42315 |
7 | 763220 |
8 | 15710280 |
9 | 366711200 |
10 | 9529898752 |
11 | 273549419552 |
12 | 8586085364211 |
13 | 292755986184548 |
14 | 10772558331396572 |
15 | 425587704331945152 |
16 | 17966093939959188380 |
17 | 807152054953801845760 |
18 | 38451298338305570267680 |