A243436 - cp's OEIS frontend

A243436 Numbers n such that n^2-n-1 is semiprime.

n	a(n)
1	8
2	13
3	15
4	18
5	19
6	23
7	24
8	26
9	28
10	30
11	33
12	34
13	35
14	38
15	41
16	44
17	50
18	52
19	58
20	59
21	62
22	64
23	68
24	70
25	72
26	73
27	74
28	75
29	76
30	78
31	79
32	80
33	82
34	83
35	88
36	89
37	91
38	92
39	96
40	98
41	99
42	100
43	105
44	106
45	107
46	108
47	109
48	110
49	111
50	112
51	113
52	114
53	117
54	119
55	120
56	122
57	123
58	124
59	125
60	128
61	130

[8, 13, 15, 18, 19, 23, 24, 26, 28, 30, 33, 34, 35, 38, 41, 44, 50, 52, 58, 59, 62, 64, 68, 70, 72, 73, 74, 75, 76, 78, 79, 80, 82, 83, 88, 89, 91, 92, 96, 98, 99, 100, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 117, 119, 120, 122, 123, 124, 125, 128, 130]

cp's OEIS Frontend

A243436 Numbers n such that n^2-n-1 is semiprime.

Table of values

List of values

n	a(n)
1	8
2	13
3	15
4	18
5	19
6	23
7	24
8	26
9	28
10	30
11	33
12	34
13	35
14	38
15	41
16	44
17	50
18	52
19	58
20	59
21	62
22	64
23	68
24	70
25	72
26	73
27	74
28	75
29	76
30	78
31	79
32	80
33	82
34	83
35	88
36	89
37	91
38	92
39	96
40	98
41	99
42	100
43	105
44	106
45	107
46	108
47	109
48	110
49	111
50	112
51	113
52	114
53	117
54	119
55	120
56	122
57	123
58	124
59	125
60	128
61	130

n	a(n)
1	8
2	13
3	15
4	18
5	19
6	23
7	24
8	26
9	28
10	30
11	33
12	34
13	35
14	38
15	41
16	44
17	50
18	52
19	58
20	59
21	62
22	64
23	68
24	70
25	72
26	73
27	74
28	75
29	76
30	78
31	79
32	80
33	82
34	83
35	88
36	89
37	91
38	92
39	96
40	98
41	99
42	100
43	105
44	106
45	107
46	108
47	109
48	110
49	111
50	112
51	113
52	114
53	117
54	119
55	120
56	122
57	123
58	124
59	125
60	128
61	130

n	a(n)
1	8
2	13
3	15
4	18
5	19
6	23
7	24
8	26
9	28
10	30
11	33
12	34
13	35
14	38
15	41
16	44
17	50
18	52
19	58
20	59
21	62
22	64
23	68
24	70
25	72
26	73
27	74
28	75
29	76
30	78
31	79
32	80
33	82
34	83
35	88
36	89
37	91
38	92
39	96
40	98
41	99
42	100
43	105
44	106
45	107
46	108
47	109
48	110
49	111
50	112
51	113
52	114
53	117
54	119
55	120
56	122
57	123
58	124
59	125
60	128
61	130