n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 7 |
6 | 1 |
7 | 6 |
8 | 25 |
9 | 90 |
10 | 1 |
11 | 10 |
12 | 65 |
13 | 350 |
14 | 1701 |
15 | 1 |
16 | 15 |
17 | 140 |
18 | 1050 |
19 | 6951 |
20 | 42525 |
21 | 1 |
22 | 21 |
23 | 266 |
24 | 2646 |
25 | 22827 |
26 | 179487 |
27 | 1323652 |
28 | 1 |
29 | 28 |
30 | 462 |
31 | 5880 |
32 | 63987 |
33 | 627396 |
34 | 5715424 |
35 | 49329280 |
36 | 1 |
37 | 36 |
38 | 750 |
39 | 11880 |
40 | 159027 |
41 | 1899612 |
42 | 20912320 |
43 | 216627840 |
44 | 2141764053 |
[1,1,1,1,3,7,1,6,25,90,1,10,65,350,1701,1,15,140, 1050,6951,42525,1,21,266,2646,22827,179487, 1323652,1,28,462,5880,63987,627396,5715424, 49329280,1,36,750,11880,159027,1899612,20912320, 216627840,2141764053] |