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 | 4 |
4 | 13 |
5 | 61 |
6 | 421 |
7 | 2626 |
8 | 27049 |
9 | 245953 |
10 | 3069721 |
11 | 40222216 |
12 | 576988501 |
13 | 10058716669 |
14 | 169773404893 |
15 | 3596206855606 |
16 | 73450508303761 |
17 | 1775382487932001 |
18 | 43993288886533489 |
19 | 1183551336464017708 |
20 | 34806599282992709341 |
21 | 1043452963148195577181 |