A394823 - OEIS

A394823 as a simple table

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	10
9	3
10	0
11	1
12	42
13	42
14	4
15	0
16	1
17	170
18	441
19	120
20	5
21	0
22	1
23	682
24	4224
25	2508
26	275
27	6
28	0
29	1
30	2730
31	39039
32	45760
33	10010
34	546
35	7
36	0
37	1
38	10922
39	355446
40	784212
41	307450
42	31668
43	980
44	8
45	0
46	1
47	43690
48	3215397
49	13021320
50	8666515
51	1508988
52	84966
53	1632
54	9

[1,0,1,0,1,2,0,1,10,3,0,1,42,42,4,0,1,170,441,120, 5,0,1,682,4224,2508,275,6,0,1,2730,39039,45760, 10010,546,7,0,1,10922,355446,784212,307450,31668, 980,8,0,1,43690,3215397,13021320,8666515,1508988, 84966,1632,9]