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 | 2 |
2 | 9 |
3 | 48 |
4 | 321 |
5 | 2502 |
6 | 22329 |
7 | 223668 |
8 | 2481921 |
9 | 30187242 |
10 | 399071529 |
11 | 5694475608 |
12 | 87197543361 |
13 | 1425766728942 |
14 | 24787205125209 |
15 | 456477484618908 |
16 | 8875541469155841 |
17 | 181670665706512722 |
18 | 3904395263350689609 |
19 | 87898121215165479168 |
20 | 2068411075529464370241 |
21 | 50778930934558144895382 |