A261718 - OEIS

A261718 as a simple table

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	2
9	0
10	1
11	3
12	7
13	3
14	0
15	1
16	4
17	15
18	18
19	5
20	0
21	1
22	5
23	26
24	55
25	50
26	7
27	0
28	1
29	6
30	40
31	124
32	216
33	118
34	11
35	0
36	1
37	7
38	57
39	235
40	631
41	729
42	301
43	15
44	0
45	1
46	8
47	77
48	398
49	1470
50	2780
51	2621
52	684
53	22
54	0
55	1
56	9
57	100
58	623
59	2955
60	8001
61	12954
62	8535
63	1621
64	30
65	0

[1,1,0,1,1,0,1,2,2,0,1,3,7,3,0,1,4,15,18,5,0,1,5, 26,55,50,7,0,1,6,40,124,216,118,11,0,1,7,57,235, 631,729,301,15,0,1,8,77,398,1470,2780,2621,684,22, 0,1,9,100,623,2955,8001,12954,8535,1621,30,0]