A085343 - cp's OEIS frontend

A085343 Number of primes between sigma(n) and phi(n) inclusive.

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

[0, 2, 1, 3, 1, 4, 1, 4, 3, 5, 1, 7, 1, 6, 5, 7, 1, 9, 1, 9, 6, 7, 1, 13, 3, 8, 5, 11, 1, 16, 1, 12, 7, 10, 6, 19, 1, 10, 7, 18, 1, 19, 1, 15, 12, 12, 1, 24, 3, 16, 9, 16, 1, 23, 8, 21, 11, 15, 1, 33, 1, 14, 16, 20, 8, 26, 1, 19, 10, 25, 1, 35, 1, 19, 18, 23, 7, 30, 1, 31, 14, 18, 1, 39, 10, 19]

cp's OEIS Frontend

A085343 Number of primes between sigma(n) and phi(n) inclusive.

Table of values

List of values

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

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

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