A185285 - OEIS

A185285 as a simple table

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	1
6	0
7	10
8	6
9	1
10	0
11	74
12	52
13	12
14	1
15	0
16	730
17	570
18	160
19	20
20	1
21	0
22	9002
23	7600
24	2430
25	380
26	30
27	1
28	0
29	133210
30	119574
31	42070
32	7630
33	770
34	42
35	1
36	0
37	2299754
38	2170252
39	822696
40	166320
41	19740
42	1400
43	56
44	1
45	0
46	45375130
47	44657106
48	17985268
49	3956568
50	528780
51	44604
52	2352
53	72
54	1

[1,0,1,0,2,1,0,10,6,1,0,74,52,12,1,0,730,570,160, 20,1,0,9002,7600,2430,380,30,1,0,133210,119574, 42070,7630,770,42,1,0,2299754,2170252,822696, 166320,19740,1400,56,1,0,45375130,44657106, 17985268,3956568,528780,44604,2352,72,1]