A245459 - cp's OEIS frontend

A245459 Number of primes of the form k^n - 2^k for positive integers k.

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

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

cp's OEIS Frontend

A245459 Number of primes of the form k^n - 2^k for positive integers k.

Table of values

List of values

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

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

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