A079067 - cp's OEIS frontend

A079067 Number of primes less than greatest prime factor of n but not dividing n.

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	1
10	1
11	4
12	0
13	5
14	2
15	1
16	0
17	6
18	0
19	7
20	1
21	2
22	3
23	8
24	0
25	2
26	4
27	1
28	2
29	9
30	0
31	10
32	0
33	3
34	5
35	2
36	0
37	11
38	6
39	4
40	1
41	12
42	1
43	13
44	3
45	1
46	7
47	14
48	0
49	3
50	1
51	5
52	4
53	15
54	0
55	3
56	2
57	6
58	8
59	16
60	0
61	17
62	9
63	2
64	0
65	4
66	2
67	18
68	5
69	7
70	1
71	19
72	0
73	20
74	10
75	1
76	6
77	3
78	3
79	21
80	1
81	1
82	11
83	22
84	1
85	5
86	12
87	8
88	3
89	23
90	0
91	4
92	7
93	9
94	13
95	6
96	0

[0, 0, 1, 0, 2, 0, 3, 0, 1, 1, 4, 0, 5, 2, 1, 0, 6, 0, 7, 1, 2, 3, 8, 0, 2, 4, 1, 2, 9, 0, 10, 0, 3, 5, 2, 0, 11, 6, 4, 1, 12, 1, 13, 3, 1, 7, 14, 0, 3, 1, 5, 4, 15, 0, 3, 2, 6, 8, 16, 0, 17, 9, 2, 0, 4, 2, 18, 5, 7, 1, 19, 0, 20, 10, 1, 6, 3, 3, 21, 1, 1, 11, 22, 1, 5, 12, 8, 3, 23, 0, 4, 7, 9, 13, 6, 0]

cp's OEIS Frontend

A079067 Number of primes less than greatest prime factor of n but not dividing n.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	1
10	1
11	4
12	0
13	5
14	2
15	1
16	0
17	6
18	0
19	7
20	1
21	2
22	3
23	8
24	0
25	2
26	4
27	1
28	2
29	9
30	0
31	10
32	0
33	3
34	5
35	2
36	0
37	11
38	6
39	4
40	1
41	12
42	1
43	13
44	3
45	1
46	7
47	14
48	0
49	3
50	1
51	5
52	4
53	15
54	0
55	3
56	2
57	6
58	8
59	16
60	0
61	17
62	9
63	2
64	0
65	4
66	2
67	18
68	5
69	7
70	1
71	19
72	0
73	20
74	10
75	1
76	6
77	3
78	3
79	21
80	1
81	1
82	11
83	22
84	1
85	5
86	12
87	8
88	3
89	23
90	0
91	4
92	7
93	9
94	13
95	6
96	0

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	1
10	1
11	4
12	0
13	5
14	2
15	1
16	0
17	6
18	0
19	7
20	1
21	2
22	3
23	8
24	0
25	2
26	4
27	1
28	2
29	9
30	0
31	10
32	0
33	3
34	5
35	2
36	0
37	11
38	6
39	4
40	1
41	12
42	1
43	13
44	3
45	1
46	7
47	14
48	0
49	3
50	1
51	5
52	4
53	15
54	0
55	3
56	2
57	6
58	8
59	16
60	0
61	17
62	9
63	2
64	0
65	4
66	2
67	18
68	5
69	7
70	1
71	19
72	0
73	20
74	10
75	1
76	6
77	3
78	3
79	21
80	1
81	1
82	11
83	22
84	1
85	5
86	12
87	8
88	3
89	23
90	0
91	4
92	7
93	9
94	13
95	6
96	0

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	0
7	3
8	0
9	1
10	1
11	4
12	0
13	5
14	2
15	1
16	0
17	6
18	0
19	7
20	1
21	2
22	3
23	8
24	0
25	2
26	4
27	1
28	2
29	9
30	0
31	10
32	0
33	3
34	5
35	2
36	0
37	11
38	6
39	4
40	1
41	12
42	1
43	13
44	3
45	1
46	7
47	14
48	0
49	3
50	1
51	5
52	4
53	15
54	0
55	3
56	2
57	6
58	8
59	16
60	0
61	17
62	9
63	2
64	0
65	4
66	2
67	18
68	5
69	7
70	1
71	19
72	0
73	20
74	10
75	1
76	6
77	3
78	3
79	21
80	1
81	1
82	11
83	22
84	1
85	5
86	12
87	8
88	3
89	23
90	0
91	4
92	7
93	9
94	13
95	6
96	0