A230772 - cp's OEIS frontend

A230772 Number of primes in the half-open interval [n, 3*n/2).

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

[0, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 2, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 2, 3, 3, 3, 4, 5, 4, 4, 4, 4, 4, 4, 5, 5, 4, 4, 5, 6, 5, 5, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 6, 6, 7, 7, 7, 7, 7, 7, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 8, 8, 9, 9, 9, 9, 8, 8, 8, 8, 7, 8, 8, 8, 9, 9, 8, 8, 9, 10, 10, 10]

cp's OEIS Frontend

A230772 Number of primes in the half-open interval [n, 3*n/2).

Table of values

List of values

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

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

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