n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 13 |
4 | 222 |
5 | 2585 |
6 | 25830 |
7 | 238833 |
8 | 2111382 |
9 | 18142585 |
10 | 152937510 |
11 | 1271964353 |
12 | 10476007542 |
13 | 85662034185 |
14 | 696700867590 |
15 | 5643519669073 |
16 | 45575393343702 |
17 | 367206720319385 |
18 | 2953481502692070 |
19 | 23723872215168993 |
20 | 190372457332919862 |
[0,0,0,13,222,2585,25830,238833,2111382,18142585, 152937510,1271964353,10476007542,85662034185, 696700867590,5643519669073,45575393343702, 367206720319385,2953481502692070, 23723872215168993,190372457332919862] |