n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 13 |
5 | 75 |
6 | 511 |
7 | 4053 |
8 | 36793 |
9 | 375735 |
10 | 4262971 |
11 | 53203953 |
12 | 724379173 |
13 | 10684377795 |
14 | 169713810631 |
15 | 2888340723453 |
16 | 52433443111153 |
17 | 1011340189494255 |
18 | 20654264750645491 |
19 | 445249365444296553 |
20 | 10103533212012216733 |
21 | 240731286454287293115 |
22 | 6008902898851584479551 |
[1,0,1,3,13,75,511,4053,36793,375735,4262971, 53203953,724379173,10684377795,169713810631, 2888340723453,52433443111153,1011340189494255, 20654264750645491,445249365444296553, 10103533212012216733,240731286454287293115, 6008902898851584479551] |