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 | 2 |
2 | 6 |
3 | 40 |
4 | 350 |
5 | 4032 |
6 | 56364 |
7 | 933504 |
8 | 17824950 |
9 | 385848320 |
10 | 9334057876 |
11 | 249576198144 |
12 | 7308698191340 |
13 | 232643283353600 |
14 | 7997684730384600 |
15 | 295306112919306240 |
16 | 11655857682806336550 |
17 | 489743069731226910720 |
18 | 21824608434847162167300 |
19 | 1028154317960939805081600 |