A017900 - OEIS

A017900 as a simple table

n	a(n)
0	1
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	1
9	1
10	1
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	9
19	12
20	16
21	21
22	27
23	34
24	43
25	55
26	71
27	92
28	119
29	153
30	196
31	251
32	322
33	414
34	533
35	686
36	882
37	1133
38	1455
39	1869
40	2402
41	3088
42	3970
43	5103
44	6558
45	8427
46	10829
47	13917
48	17887
49	22990
50	29548
51	37975
52	48804
53	62721
54	80608

[1,0,0,0,0,0,1,1,1,1,1,1,2,3,4,5,6,7,9,12,16,21, 27,34,43,55,71,92,119,153,196,251,322,414,533,686, 882,1133,1455,1869,2402,3088,3970,5103,6558,8427, 10829,13917,17887,22990,29548,37975,48804,62721, 80608]