A392490 - OEIS

A392490 as a simple table

n	a(n)
0	1
1	0
2	0
3	2
4	0
5	0
6	3
7	1
8	0
9	4
10	4
11	0
12	5
13	10
14	1
15	6
16	20
17	6
18	7
19	35
20	21
21	9
22	56
23	56
24	17
25	84
26	126
27	46
28	121
29	252
30	131
31	175
32	462
33	342
34	275
35	793
36	805
37	506
38	1299
39	1730
40	1079
41	2080
42	3448
43	2457
44	3367
45	6465
46	5565
47	5733
48	11562
49	12121
50	10556
51	20026
52	25142
53	20944
54	34223
55	49725

[1,0,0,2,0,0,3,1,0,4,4,0,5,10,1,6,20,6,7,35,21,9, 56,56,17,84,126,46,121,252,131,175,462,342,275, 793,805,506,1299,1730,1079,2080,3448,2457,3367, 6465,5565,5733,11562,12121,10556,20026,25142, 20944,34223,49725]