A066049 - cp's OEIS frontend

A066049 Numbers n such that 2*n^2 - 1 is a prime.

n	a(n)
1	2
2	3
3	4
4	6
5	7
6	8
7	10
8	11
9	13
10	15
11	17
12	18
13	21
14	22
15	24
16	25
17	28
18	34
19	36
20	38
21	39
22	41
23	42
24	43
25	45
26	46
27	49
28	50
29	52
30	56
31	59
32	62
33	63
34	64
35	69
36	73
37	76
38	80
39	81
40	85
41	87
42	91
43	92
44	95
45	98
46	102
47	108
48	109
49	112
50	113
51	115
52	118
53	125
54	126
55	127
56	132
57	134
58	137
59	140
60	141
61	143
62	153
63	154
64	155

[2, 3, 4, 6, 7, 8, 10, 11, 13, 15, 17, 18, 21, 22, 24, 25, 28, 34, 36, 38, 39, 41, 42, 43, 45, 46, 49, 50, 52, 56, 59, 62, 63, 64, 69, 73, 76, 80, 81, 85, 87, 91, 92, 95, 98, 102, 108, 109, 112, 113, 115, 118, 125, 126, 127, 132, 134, 137, 140, 141, 143, 153, 154, 155]

cp's OEIS Frontend

A066049 Numbers n such that 2*n^2 - 1 is a prime.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	6
5	7
6	8
7	10
8	11
9	13
10	15
11	17
12	18
13	21
14	22
15	24
16	25
17	28
18	34
19	36
20	38
21	39
22	41
23	42
24	43
25	45
26	46
27	49
28	50
29	52
30	56
31	59
32	62
33	63
34	64
35	69
36	73
37	76
38	80
39	81
40	85
41	87
42	91
43	92
44	95
45	98
46	102
47	108
48	109
49	112
50	113
51	115
52	118
53	125
54	126
55	127
56	132
57	134
58	137
59	140
60	141
61	143
62	153
63	154
64	155

n	a(n)
1	2
2	3
3	4
4	6
5	7
6	8
7	10
8	11
9	13
10	15
11	17
12	18
13	21
14	22
15	24
16	25
17	28
18	34
19	36
20	38
21	39
22	41
23	42
24	43
25	45
26	46
27	49
28	50
29	52
30	56
31	59
32	62
33	63
34	64
35	69
36	73
37	76
38	80
39	81
40	85
41	87
42	91
43	92
44	95
45	98
46	102
47	108
48	109
49	112
50	113
51	115
52	118
53	125
54	126
55	127
56	132
57	134
58	137
59	140
60	141
61	143
62	153
63	154
64	155

n	a(n)
1	2
2	3
3	4
4	6
5	7
6	8
7	10
8	11
9	13
10	15
11	17
12	18
13	21
14	22
15	24
16	25
17	28
18	34
19	36
20	38
21	39
22	41
23	42
24	43
25	45
26	46
27	49
28	50
29	52
30	56
31	59
32	62
33	63
34	64
35	69
36	73
37	76
38	80
39	81
40	85
41	87
42	91
43	92
44	95
45	98
46	102
47	108
48	109
49	112
50	113
51	115
52	118
53	125
54	126
55	127
56	132
57	134
58	137
59	140
60	141
61	143
62	153
63	154
64	155