A034391 - OEIS

A034391 as a simple table

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	0
10	1
11	0
12	1
13	1
14	2
15	1
16	3
17	2
18	4
19	4
20	6
21	6
22	11
23	10
24	16
25	18
26	25
27	28
28	41
29	45
30	63
31	74
32	99
33	116
34	158
35	184
36	245
37	296
38	383
39	463
40	604
41	729
42	940
43	1151
44	1468
45	1800
46	2296
47	2817
48	3573
49	4412
50	5566
51	6878
52	8677

[0,0,0,1,0,0,0,0,0,1,0,1,1,2,1,3,2,4,4,6,6,11,10, 16,18,25,28,41,45,63,74,99,116,158,184,245,296, 383,463,604,729,940,1151,1468,1800,2296,2817,3573, 4412,5566,6878,8677]