A167504 - cp's OEIS frontend

A167504 Number of primes of the form 2^(n-m) 3^m - 1, 0 <= m <= n.

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

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

cp's OEIS Frontend

A167504 Number of primes of the form 2^(n-m) 3^m - 1, 0 <= m <= n.

Table of values

List of values

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

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

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