A154559 - OEIS

A154559 as a simple table

n	a(n)
1	1
2	2
3	0
4	3
5	2
6	0
7	4
8	6
9	4
10	0
11	5
12	12
13	16
14	9
15	0
16	6
17	20
18	40
19	45
20	21
21	0
22	7
23	30
24	80
25	135
26	126
27	51
28	0
29	8
30	42
31	140
32	315
33	441
34	357
35	127
36	0
37	9
38	56
39	224
40	630
41	1176
42	1428
43	1016
44	323
45	0
46	10
47	72
48	336
49	1134
50	2646
51	4284
52	4572
53	2907
54	835
55	0

[1,2,0,3,2,0,4,6,4,0,5,12,16,9,0,6,20,40,45,21,0, 7,30,80,135,126,51,0,8,42,140,315,441,357,127,0,9, 56,224,630,1176,1428,1016,323,0,10,72,336,1134, 2646,4284,4572,2907,835,0]