A334296 - cp's OEIS frontend

A334296 Smallest k such that (2k+1)*2^n+1 is prime.

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

[0, 0, 0, 2, 0, 1, 1, 2, 0, 7, 6, 4, 1, 2, 3, 2, 0, 4, 1, 5, 3, 5, 12, 22, 22, 2, 3, 7, 6, 11, 1, 17, 21, 4, 37, 29, 1, 7, 7, 2, 13, 1, 4, 4, 7, 17, 9, 13, 7, 11, 3, 8, 3, 25, 24, 2, 13, 14, 49, 13, 15, 26, 52, 4, 12, 4, 1, 4, 15, 11, 19, 19, 63, 11, 33, 2, 46]

cp's OEIS Frontend

A334296 Smallest k such that (2k+1)*2^n+1 is prime.

Table of values

List of values

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

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

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