A143827 - cp's OEIS frontend

A143827 Numbers k such that 8*k^2 - 1 is prime.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	11
8	12
9	14
10	17
11	18
12	19
13	21
14	23
15	25
16	26
17	28
18	31
19	32
20	38
21	40
22	46
23	49
24	51
25	54
26	56
27	59
28	63
29	66
30	67
31	70
32	77
33	79
34	80
35	82
36	86
37	89
38	93
39	94
40	96
41	98
42	100
43	102
44	103
45	107
46	110
47	114
48	116
49	119
50	121
51	124
52	128
53	133
54	135
55	137
56	140
57	144
58	147
59	150
60	152
61	156
62	161
63	166

[1, 2, 3, 4, 5, 9, 11, 12, 14, 17, 18, 19, 21, 23, 25, 26, 28, 31, 32, 38, 40, 46, 49, 51, 54, 56, 59, 63, 66, 67, 70, 77, 79, 80, 82, 86, 89, 93, 94, 96, 98, 100, 102, 103, 107, 110, 114, 116, 119, 121, 124, 128, 133, 135, 137, 140, 144, 147, 150, 152, 156, 161, 166]

cp's OEIS Frontend

A143827 Numbers k such that 8*k^2 - 1 is prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	11
8	12
9	14
10	17
11	18
12	19
13	21
14	23
15	25
16	26
17	28
18	31
19	32
20	38
21	40
22	46
23	49
24	51
25	54
26	56
27	59
28	63
29	66
30	67
31	70
32	77
33	79
34	80
35	82
36	86
37	89
38	93
39	94
40	96
41	98
42	100
43	102
44	103
45	107
46	110
47	114
48	116
49	119
50	121
51	124
52	128
53	133
54	135
55	137
56	140
57	144
58	147
59	150
60	152
61	156
62	161
63	166

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	11
8	12
9	14
10	17
11	18
12	19
13	21
14	23
15	25
16	26
17	28
18	31
19	32
20	38
21	40
22	46
23	49
24	51
25	54
26	56
27	59
28	63
29	66
30	67
31	70
32	77
33	79
34	80
35	82
36	86
37	89
38	93
39	94
40	96
41	98
42	100
43	102
44	103
45	107
46	110
47	114
48	116
49	119
50	121
51	124
52	128
53	133
54	135
55	137
56	140
57	144
58	147
59	150
60	152
61	156
62	161
63	166

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	11
8	12
9	14
10	17
11	18
12	19
13	21
14	23
15	25
16	26
17	28
18	31
19	32
20	38
21	40
22	46
23	49
24	51
25	54
26	56
27	59
28	63
29	66
30	67
31	70
32	77
33	79
34	80
35	82
36	86
37	89
38	93
39	94
40	96
41	98
42	100
43	102
44	103
45	107
46	110
47	114
48	116
49	119
50	121
51	124
52	128
53	133
54	135
55	137
56	140
57	144
58	147
59	150
60	152
61	156
62	161
63	166