n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 22 |
5 | 161 |
6 | 1546 |
7 | 18857 |
8 | 270320 |
9 | 4471693 |
10 | 85455574 |
11 | 1865128265 |
12 | 45735737037 |
13 | 1247518965519 |
14 | 37654095184226 |
15 | 1250673144714138 |
16 | 45415758777730668 |
17 | 1792734161930717221 |
18 | 76595370803745016626 |
19 | 3529261203030717032927 |
20 | 174742139545017029583279 |
[1,0,1,3,22,161,1546,18857,270320,4471693, 85455574,1865128265,45735737037,1247518965519, 37654095184226,1250673144714138,45415758777730668, 1792734161930717221,76595370803745016626, 3529261203030717032927,174742139545017029583279] |