A017830 - OEIS

A017830 as a simple table

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	2
9	2
10	3
11	4
12	6
13	7
14	9
15	12
16	17
17	22
18	29
19	38
20	51
21	67
22	89
23	118
24	157
25	207
26	274
27	363
28	482
29	638
30	845
31	1119
32	1483
33	1964
34	2602
35	3447
36	4567
37	6049
38	8013
39	10615
40	14063
41	18629
42	24678
43	32691
44	43307
45	57369

[1,0,0,0,1,1,1,1,2,2,3,4,6,7,9,12,17,22,29,38,51, 67,89,118,157,207,274,363,482,638,845,1119,1483, 1964,2602,3447,4567,6049,8013,10615,14063,18629, 24678,32691,43307,57369]

[1,0,0,0,1,1,1,1,2,2,3,4,6,7,9,12,17,22,29,38,51,
 67,89,118,157,207,274,363,482,638,845,1119,1483,
 1964,2602,3447,4567,6049,8013,10615,14063,18629,
 24678,32691,43307,57369]