A173189 - cp's OEIS frontend

A173189 For bases beginning with b=2, a(b) is the number of primes beginning with a power of b that are a concatenation of simply decremented numbers that are less than A227775(b).

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

[1, 0, 11, 0, 1, 2, 1, 0, 17, 0, 0, 6, 0, 0, 3, 0, 0, 5, 1, 0, 0, 0, 1, 2, 3, 0, 2, 0, 1, 5, 0, 1, 2, 0, 3, 5, 1, 0, 4, 0, 0, 6, 1, 0, 3, 3, 1, 8, 2, 0, 3, 1, 1, 3, 1, 0, 3, 0, 1, 5, 3, 0, 8, 0, 2, 7, 2, 0, 5, 0, 0, 4, 0, 2, 4, 0, 2]

cp's OEIS Frontend

A173189 For bases beginning with b=2, a(b) is the number of primes beginning with a power of b that are a concatenation of simply decremented numbers that are less than A227775(b).

Table of values

List of values

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

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

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