A274584 - cp's OEIS frontend

A274584 Composite numbers n such that primitive part of Fibonacci(n) is prime.

n	a(n)
1	4
2	8
3	9
4	10
5	14
6	15
7	16
8	18
9	20
10	21
11	22
12	26
13	28
14	30
15	32
16	33
17	34
18	35
19	38
20	39
21	40
22	42
23	45
24	51
25	52
26	54
27	60
28	62
29	63
30	65
31	66
32	72
33	74
34	75
35	76
36	82
37	93
38	94
39	98
40	105
41	106
42	111
43	112
44	119
45	121
46	122
47	123
48	124
49	132
50	135
51	136
52	140
53	142
54	144
55	145
56	152
57	156
58	158
59	160
60	172
61	180

[4, 8, 9, 10, 14, 15, 16, 18, 20, 21, 22, 26, 28, 30, 32, 33, 34, 35, 38, 39, 40, 42, 45, 51, 52, 54, 60, 62, 63, 65, 66, 72, 74, 75, 76, 82, 93, 94, 98, 105, 106, 111, 112, 119, 121, 122, 123, 124, 132, 135, 136, 140, 142, 144, 145, 152, 156, 158, 160, 172, 180]

cp's OEIS Frontend

A274584 Composite numbers n such that primitive part of Fibonacci(n) is prime.

Table of values

List of values

n	a(n)
1	4
2	8
3	9
4	10
5	14
6	15
7	16
8	18
9	20
10	21
11	22
12	26
13	28
14	30
15	32
16	33
17	34
18	35
19	38
20	39
21	40
22	42
23	45
24	51
25	52
26	54
27	60
28	62
29	63
30	65
31	66
32	72
33	74
34	75
35	76
36	82
37	93
38	94
39	98
40	105
41	106
42	111
43	112
44	119
45	121
46	122
47	123
48	124
49	132
50	135
51	136
52	140
53	142
54	144
55	145
56	152
57	156
58	158
59	160
60	172
61	180

n	a(n)
1	4
2	8
3	9
4	10
5	14
6	15
7	16
8	18
9	20
10	21
11	22
12	26
13	28
14	30
15	32
16	33
17	34
18	35
19	38
20	39
21	40
22	42
23	45
24	51
25	52
26	54
27	60
28	62
29	63
30	65
31	66
32	72
33	74
34	75
35	76
36	82
37	93
38	94
39	98
40	105
41	106
42	111
43	112
44	119
45	121
46	122
47	123
48	124
49	132
50	135
51	136
52	140
53	142
54	144
55	145
56	152
57	156
58	158
59	160
60	172
61	180

n	a(n)
1	4
2	8
3	9
4	10
5	14
6	15
7	16
8	18
9	20
10	21
11	22
12	26
13	28
14	30
15	32
16	33
17	34
18	35
19	38
20	39
21	40
22	42
23	45
24	51
25	52
26	54
27	60
28	62
29	63
30	65
31	66
32	72
33	74
34	75
35	76
36	82
37	93
38	94
39	98
40	105
41	106
42	111
43	112
44	119
45	121
46	122
47	123
48	124
49	132
50	135
51	136
52	140
53	142
54	144
55	145
56	152
57	156
58	158
59	160
60	172
61	180