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 | 1 |
3 | 3 |
4 | 18 |
5 | 174 |
6 | 2394 |
7 | 43488 |
8 | 993150 |
9 | 27560142 |
10 | 906516252 |
11 | 34681891932 |
12 | 1520713138896 |
13 | 75519376934904 |
14 | 4206425439922920 |
15 | 260667523550924424 |
16 | 17848073907441578484 |
17 | 1342326288499671643956 |
18 | 110319548590679184794880 |
19 | 9862994518551295719972264 |
20 | 955390360741496204485599576 |