A209701 - OEIS

A209701 as a simple table

n	a(n)
1	1
2	0
3	2
4	0
5	2
6	5
7	0
8	3
9	7
10	12
11	0
12	4
13	11
14	23
15	29
16	0
17	5
18	16
19	41
20	70
21	70
22	0
23	6
24	22
25	66
26	140
27	204
28	169
29	0
30	7
31	29
32	99
33	247
34	455
35	577
36	408
37	0
38	8
39	37
40	141
41	401
42	875
43	1423
44	1597
45	985
46	0
47	9
48	46
49	193
50	613
51	1529
52	2965
53	4321
54	4348
55	2378
56	0
57	10
58	56
59	256
60	895
61	2495
62	5549

[1,0,2,0,2,5,0,3,7,12,0,4,11,23,29,0,5,16,41,70, 70,0,6,22,66,140,204,169,0,7,29,99,247,455,577, 408,0,8,37,141,401,875,1423,1597,985,0,9,46,193, 613,1529,2965,4321,4348,2378,0,10,56,256,895,2495, 5549]