n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 0 |
5 | 11 |
6 | 0 |
7 | 22 |
8 | 56 |
9 | 36 |
10 | 2640 |
11 | 1 |
12 | 8712 |
13 | 79 |
14 | 72436 |
15 | 360465 |
16 | 48608 |
17 | 49008961 |
18 | 794376 |
19 | 4232764 |
20 | 7753140 |
21 | 942565890 |
22 | 18198334 |
23 | 14799637777 |
24 | 10577976 |
25 | 366619314900 |
26 | 2785137222400 |
27 | 1475339135400 |
28 | 1065920156634060 |
29 | 3765722000041 |
30 | 5869315258699050 |
[1,0,1,1,0,11,0,22,56,36,2640,1,8712,79,72436, 360465,48608,49008961,794376,4232764,7753140, 942565890,18198334,14799637777,10577976, 366619314900,2785137222400,1475339135400, 1065920156634060,3765722000041,5869315258699050] |