A000607 - OEIS

A000607 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	30
22	35
23	40
24	46
25	52
26	60
27	67
28	77
29	87
30	98
31	111
32	124
33	140
34	157
35	175
36	197
37	219
38	244
39	272
40	302
41	336
42	372
43	413
44	456
45	504
46	557
47	614
48	677
49	744
50	819
51	899
52	987
53	1083
54	1186
55	1298
56	1420
57	1552
58	1695
59	1850
60	2018
61	2198
62	2394
63	2605
64	2833
65	3079
66	3344

[1,0,1,1,1,2,2,3,3,4,5,6,7,9,10,12,14,17,19,23,26, 30,35,40,46,52,60,67,77,87,98,111,124,140,157,175, 197,219,244,272,302,336,372,413,456,504,557,614, 677,744,819,899,987,1083,1186,1298,1420,1552,1695, 1850,2018,2198,2394,2605,2833,3079,3344]