n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 2 |
4 | 9 |
5 | 24 |
6 | 160 |
7 | 1350 |
8 | 10353 |
9 | 89936 |
10 | 910656 |
11 | 10070730 |
12 | 120546745 |
13 | 1566125352 |
14 | 21934589664 |
15 | 329037515534 |
16 | 5264316535905 |
17 | 89493067364640 |
18 | 1610885172539008 |
19 | 30606819613112466 |
20 | 612136012448309481 |
21 | 12854856587833586360 |
22 | 282806860558105285920 |
[1,0,0,2,9,24,160,1350,10353,89936,910656, 10070730,120546745,1566125352,21934589664, 329037515534,5264316535905,89493067364640, 1610885172539008,30606819613112466, 612136012448309481,12854856587833586360, 282806860558105285920] |