n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 3 |
4 | 4 |
5 | 65 |
6 | 726 |
7 | 8617 |
8 | 127688 |
9 | 2374353 |
10 | 50692330 |
11 | 1198835561 |
12 | 31297606572 |
13 | 901114484569 |
14 | 28449258421598 |
15 | 976863784939785 |
16 | 36199494609008656 |
17 | 1438734246518372897 |
18 | 61037354387458904274 |
19 | 2753490065023053584713 |
20 | 131645635680595606832180 |
[1,1,0,3,4,65,726,8617,127688,2374353,50692330, 1198835561,31297606572,901114484569, 28449258421598,976863784939785,36199494609008656, 1438734246518372897,61037354387458904274, 2753490065023053584713,131645635680595606832180] |