A394438 - OEIS

A394438 as a simple table

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	1
6	0
7	6
8	9
9	1
10	0
11	10
12	51
13	18
14	1
15	0
16	15
17	230
18	195
19	30
20	1
21	0
22	21
23	900
24	1635
25	525
26	45
27	1
28	0
29	28
30	3192
31	11655
32	6965
33	1155
34	63
35	1
36	0
37	36
38	10528
39	74088
40	77385
41	22120
42	2226
43	84
44	1
45	0
46	45
47	32832
48	432054
49	757764
50	350595
51	57960
52	3906
53	108
54	1

[1,0,1,0,3,1,0,6,9,1,0,10,51,18,1,0,15,230,195,30, 1,0,21,900,1635,525,45,1,0,28,3192,11655,6965, 1155,63,1,0,36,10528,74088,77385,22120,2226,84,1, 0,45,32832,432054,757764,350595,57960,3906,108,1]