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 | 8 |
3 | 70 |
4 | 608 |
5 | 5284 |
6 | 45920 |
7 | 399064 |
8 | 3468032 |
9 | 30138640 |
10 | 261917312 |
11 | 2276170336 |
12 | 19780866560 |
13 | 171903954496 |
14 | 1493916835328 |
15 | 12982758409600 |
16 | 112825568288768 |
17 | 980501096767744 |
18 | 8520962183874560 |
19 | 74050704051602944 |
20 | 643531405516070912 |
21 | 5592555468438184960 |