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 | 0 |
1 | 1 |
2 | 2 |
3 | 13 |
4 | 71 |
5 | 558 |
6 | 5344 |
7 | 60926 |
8 | 766898 |
9 | 10759096 |
10 | 168848256 |
11 | 2947203048 |
12 | 56368708824 |
13 | 1165246323408 |
14 | 25802649445728 |
15 | 609940593443952 |
16 | 15377212949988624 |
17 | 412827548455415040 |
18 | 11764577341464710016 |
19 | 354392697960438122880 |
20 | 11237993013428254071936 |