A045546 - cp's OEIS frontend

A045546 Numbers k such that k^2 + k - 1 is prime.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	10
9	11
10	13
11	15
12	16
13	19
14	20
15	21
16	24
17	26
18	28
19	30
20	31
21	35
22	38
23	39
24	41
25	44
26	45
27	46
28	48
29	50
30	53
31	54
32	55
33	56
34	59
35	60
36	64
37	65
38	66
39	68
40	70
41	76
42	83
43	85
44	86
45	89
46	93
47	94
48	96
49	100
50	101
51	103
52	114
53	115
54	120
55	125
56	126
57	130
58	131
59	134
60	138
61	140

[2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 15, 16, 19, 20, 21, 24, 26, 28, 30, 31, 35, 38, 39, 41, 44, 45, 46, 48, 50, 53, 54, 55, 56, 59, 60, 64, 65, 66, 68, 70, 76, 83, 85, 86, 89, 93, 94, 96, 100, 101, 103, 114, 115, 120, 125, 126, 130, 131, 134, 138, 140]

cp's OEIS Frontend

A045546 Numbers k such that k^2 + k - 1 is prime.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	10
9	11
10	13
11	15
12	16
13	19
14	20
15	21
16	24
17	26
18	28
19	30
20	31
21	35
22	38
23	39
24	41
25	44
26	45
27	46
28	48
29	50
30	53
31	54
32	55
33	56
34	59
35	60
36	64
37	65
38	66
39	68
40	70
41	76
42	83
43	85
44	86
45	89
46	93
47	94
48	96
49	100
50	101
51	103
52	114
53	115
54	120
55	125
56	126
57	130
58	131
59	134
60	138
61	140

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	10
9	11
10	13
11	15
12	16
13	19
14	20
15	21
16	24
17	26
18	28
19	30
20	31
21	35
22	38
23	39
24	41
25	44
26	45
27	46
28	48
29	50
30	53
31	54
32	55
33	56
34	59
35	60
36	64
37	65
38	66
39	68
40	70
41	76
42	83
43	85
44	86
45	89
46	93
47	94
48	96
49	100
50	101
51	103
52	114
53	115
54	120
55	125
56	126
57	130
58	131
59	134
60	138
61	140

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	10
9	11
10	13
11	15
12	16
13	19
14	20
15	21
16	24
17	26
18	28
19	30
20	31
21	35
22	38
23	39
24	41
25	44
26	45
27	46
28	48
29	50
30	53
31	54
32	55
33	56
34	59
35	60
36	64
37	65
38	66
39	68
40	70
41	76
42	83
43	85
44	86
45	89
46	93
47	94
48	96
49	100
50	101
51	103
52	114
53	115
54	120
55	125
56	126
57	130
58	131
59	134
60	138
61	140