A175045 - cp's OEIS frontend

A175045 a(n) = number of distinct values k of substrings in binary n where both k is prime and A030101(k) is prime.

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

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

cp's OEIS Frontend

A175045 a(n) = number of distinct values k of substrings in binary n where both k is prime and A030101(k) is prime.

Table of values

List of values

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

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

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