A108197 - cp's OEIS frontend

A108197 Number of composite numbers between two successive semiprimes.

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	3
7	0
8	1
9	0
10	4
11	0
12	0
13	1
14	0
15	4
16	1
17	1
18	2
19	1
20	0
21	1
22	2
23	2
24	2
25	2
26	3
27	1
28	0
29	0
30	2
31	1
32	0
33	0
34	7
35	2
36	2
37	2
38	0
39	1
40	0
41	0
42	4
43	2
44	0
45	4
46	0
47	0
48	1
49	0
50	6
51	1
52	0
53	1
54	3
55	1
56	6
57	0
58	2
59	1
60	1
61	4
62	4
63	0
64	0
65	1
66	0
67	2
68	2
69	0
70	0
71	1
72	0
73	0
74	1
75	3
76	5
77	1
78	7
79	1
80	2
81	0
82	3
83	2
84	1
85	1
86	4
87	2
88	6
89	1
90	1
91	2
92	2
93	0
94	1
95	0
96	0
97	1
98	2
99	2
100	3
101	1
102	1
103	2
104	0
105	1

[0, 1, 0, 1, 0, 3, 0, 1, 0, 4, 0, 0, 1, 0, 4, 1, 1, 2, 1, 0, 1, 2, 2, 2, 2, 3, 1, 0, 0, 2, 1, 0, 0, 7, 2, 2, 2, 0, 1, 0, 0, 4, 2, 0, 4, 0, 0, 1, 0, 6, 1, 0, 1, 3, 1, 6, 0, 2, 1, 1, 4, 4, 0, 0, 1, 0, 2, 2, 0, 0, 1, 0, 0, 1, 3, 5, 1, 7, 1, 2, 0, 3, 2, 1, 1, 4, 2, 6, 1, 1, 2, 2, 0, 1, 0, 0, 1, 2, 2, 3, 1, 1, 2, 0, 1]

cp's OEIS Frontend

A108197 Number of composite numbers between two successive semiprimes.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	3
7	0
8	1
9	0
10	4
11	0
12	0
13	1
14	0
15	4
16	1
17	1
18	2
19	1
20	0
21	1
22	2
23	2
24	2
25	2
26	3
27	1
28	0
29	0
30	2
31	1
32	0
33	0
34	7
35	2
36	2
37	2
38	0
39	1
40	0
41	0
42	4
43	2
44	0
45	4
46	0
47	0
48	1
49	0
50	6
51	1
52	0
53	1
54	3
55	1
56	6
57	0
58	2
59	1
60	1
61	4
62	4
63	0
64	0
65	1
66	0
67	2
68	2
69	0
70	0
71	1
72	0
73	0
74	1
75	3
76	5
77	1
78	7
79	1
80	2
81	0
82	3
83	2
84	1
85	1
86	4
87	2
88	6
89	1
90	1
91	2
92	2
93	0
94	1
95	0
96	0
97	1
98	2
99	2
100	3
101	1
102	1
103	2
104	0
105	1

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	3
7	0
8	1
9	0
10	4
11	0
12	0
13	1
14	0
15	4
16	1
17	1
18	2
19	1
20	0
21	1
22	2
23	2
24	2
25	2
26	3
27	1
28	0
29	0
30	2
31	1
32	0
33	0
34	7
35	2
36	2
37	2
38	0
39	1
40	0
41	0
42	4
43	2
44	0
45	4
46	0
47	0
48	1
49	0
50	6
51	1
52	0
53	1
54	3
55	1
56	6
57	0
58	2
59	1
60	1
61	4
62	4
63	0
64	0
65	1
66	0
67	2
68	2
69	0
70	0
71	1
72	0
73	0
74	1
75	3
76	5
77	1
78	7
79	1
80	2
81	0
82	3
83	2
84	1
85	1
86	4
87	2
88	6
89	1
90	1
91	2
92	2
93	0
94	1
95	0
96	0
97	1
98	2
99	2
100	3
101	1
102	1
103	2
104	0
105	1

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	3
7	0
8	1
9	0
10	4
11	0
12	0
13	1
14	0
15	4
16	1
17	1
18	2
19	1
20	0
21	1
22	2
23	2
24	2
25	2
26	3
27	1
28	0
29	0
30	2
31	1
32	0
33	0
34	7
35	2
36	2
37	2
38	0
39	1
40	0
41	0
42	4
43	2
44	0
45	4
46	0
47	0
48	1
49	0
50	6
51	1
52	0
53	1
54	3
55	1
56	6
57	0
58	2
59	1
60	1
61	4
62	4
63	0
64	0
65	1
66	0
67	2
68	2
69	0
70	0
71	1
72	0
73	0
74	1
75	3
76	5
77	1
78	7
79	1
80	2
81	0
82	3
83	2
84	1
85	1
86	4
87	2
88	6
89	1
90	1
91	2
92	2
93	0
94	1
95	0
96	0
97	1
98	2
99	2
100	3
101	1
102	1
103	2
104	0
105	1