A046676 - OEIS

A046676 as a simple table

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	2
6	2
7	3
8	3
9	4
10	5
11	6
12	7
13	9
14	10
15	12
16	14
17	17
18	19
19	23
20	26
21	31
22	35
23	41
24	46
25	54
26	60
27	69
28	78
29	89
30	99
31	113
32	126
33	143
34	159
35	179
36	199
37	224
38	248
39	277
40	307
41	343
42	378
43	421
44	464
45	515
46	567
47	628
48	690
49	763
50	837
51	923
52	1012
53	1115
54	1219
55	1340
56	1465
57	1607

[1,0,1,1,1,2,2,3,3,4,5,6,7,9,10,12,14,17,19,23,26, 31,35,41,46,54,60,69,78,89,99,113,126,143,159,179, 199,224,248,277,307,343,378,421,464,515,567,628, 690,763,837,923,1012,1115,1219,1340,1465,1607]