n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 10 |
5 | 26 |
6 | 166 |
7 | 652 |
8 | 3795 |
9 | 18755 |
10 | 112124 |
11 | 648649 |
12 | 4163743 |
13 | 27216840 |
14 | 190168577 |
15 | 1376119903 |
16 | 10468226150 |
17 | 82744297014 |
18 | 681863474058 |
19 | 5830425411936 |
20 | 51720008131148 |
21 | 474821737584174 |
22 | 4506628734688128 |
23 | 44150936144057758 |
24 | 445956917001833090 |
25 | 4638564968368158592 |
[1,0,1,1,10,26,166,652,3795,18755,112124,648649, 4163743,27216840,190168577,1376119903,10468226150, 82744297014,681863474058,5830425411936, 51720008131148,474821737584174,4506628734688128, 44150936144057758,445956917001833090, 4638564968368158592] |