A285933 - cp's OEIS frontend

A285933 a(n) = smallest k such that (6k-3)2^n-1 and (6k-3)2^n+1 are twin primes.

n	a(n)
1	1
2	1
3	2
4	3
5	14
6	1
7	2
8	10
9	8
10	3
11	17
12	28
13	62
14	8
15	58
16	20
17	64
18	1
19	12
20	75
21	14
22	6
23	197
24	41
25	128
26	63
27	14
28	65
29	8
30	58
31	114
32	98
33	63
34	45
35	124
36	36
37	72
38	516
39	28
40	45
41	43
42	183
43	2
44	25
45	142
46	68
47	249
48	30
49	324
50	155
51	188
52	200
53	334
54	56
55	87
56	178
57	98
58	110
59	22
60	25
61	24
62	70
63	2
64	271
65	17
66	498
67	412
68	750
69	877

[1, 1, 2, 3, 14, 1, 2, 10, 8, 3, 17, 28, 62, 8, 58, 20, 64, 1, 12, 75, 14, 6, 197, 41, 128, 63, 14, 65, 8, 58, 114, 98, 63, 45, 124, 36, 72, 516, 28, 45, 43, 183, 2, 25, 142, 68, 249, 30, 324, 155, 188, 200, 334, 56, 87, 178, 98, 110, 22, 25, 24, 70, 2, 271, 17, 498, 412, 750, 877]

cp's OEIS Frontend

A285933 a(n) = smallest k such that (6k-3)2^n-1 and (6k-3)2^n+1 are twin primes.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	14
6	1
7	2
8	10
9	8
10	3
11	17
12	28
13	62
14	8
15	58
16	20
17	64
18	1
19	12
20	75
21	14
22	6
23	197
24	41
25	128
26	63
27	14
28	65
29	8
30	58
31	114
32	98
33	63
34	45
35	124
36	36
37	72
38	516
39	28
40	45
41	43
42	183
43	2
44	25
45	142
46	68
47	249
48	30
49	324
50	155
51	188
52	200
53	334
54	56
55	87
56	178
57	98
58	110
59	22
60	25
61	24
62	70
63	2
64	271
65	17
66	498
67	412
68	750
69	877

n	a(n)
1	1
2	1
3	2
4	3
5	14
6	1
7	2
8	10
9	8
10	3
11	17
12	28
13	62
14	8
15	58
16	20
17	64
18	1
19	12
20	75
21	14
22	6
23	197
24	41
25	128
26	63
27	14
28	65
29	8
30	58
31	114
32	98
33	63
34	45
35	124
36	36
37	72
38	516
39	28
40	45
41	43
42	183
43	2
44	25
45	142
46	68
47	249
48	30
49	324
50	155
51	188
52	200
53	334
54	56
55	87
56	178
57	98
58	110
59	22
60	25
61	24
62	70
63	2
64	271
65	17
66	498
67	412
68	750
69	877

cp's OEIS Frontend

A285933 a(n) = smallest k such that (6*k-3)*2^n-1 and (6*k-3)*2^n+1 are twin primes.

Table of values

List of values

A285933 a(n) = smallest k such that (6k-3)2^n-1 and (6k-3)2^n+1 are twin primes.

n	a(n)
1	1
2	1
3	2
4	3
5	14
6	1
7	2
8	10
9	8
10	3
11	17
12	28
13	62
14	8
15	58
16	20
17	64
18	1
19	12
20	75
21	14
22	6
23	197
24	41
25	128
26	63
27	14
28	65
29	8
30	58
31	114
32	98
33	63
34	45
35	124
36	36
37	72
38	516
39	28
40	45
41	43
42	183
43	2
44	25
45	142
46	68
47	249
48	30
49	324
50	155
51	188
52	200
53	334
54	56
55	87
56	178
57	98
58	110
59	22
60	25
61	24
62	70
63	2
64	271
65	17
66	498
67	412
68	750
69	877