A339082 - cp's OEIS frontend

A339082 a(n) is the number m such that F(prime(m)) is the greatest prime Fibonacci divisor of F(n)^2 + 1 where F(n) is the n-th Fibonacci number, or 0 if no such prime factor exists.

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	4
7	3
8	4
9	5
10	5
11	6
12	6
13	5
14	6
15	7
16	7
17	3
18	7
19	7
20	4
21	9
22	9
23	4
24	9
25	9
26	3
27	10
28	10
29	2
30	10
31	10
32	5
33	4
34	5
35	5
36	4
37	6
38	6
39	0
40	6
41	14
42	14
43	3
44	14
45	15
46	15
47	4
48	15
49	15
50	7
51	4
52	7
53	7
54	5
55	2
56	5
57	5
58	2
59	2
60	0
61	4
62	4
63	6
64	6
65	4
66	6
67	9
68	9
69	0
70	9
71	9
72	0
73	3
74	3
75	5
76	5
77	3
78	5
79	5
80	2
81	23
82	23
83	7

[2, 2, 3, 3, 4, 4, 3, 4, 5, 5, 6, 6, 5, 6, 7, 7, 3, 7, 7, 4, 9, 9, 4, 9, 9, 3, 10, 10, 2, 10, 10, 5, 4, 5, 5, 4, 6, 6, 0, 6, 14, 14, 3, 14, 15, 15, 4, 15, 15, 7, 4, 7, 7, 5, 2, 5, 5, 2, 2, 0, 4, 4, 6, 6, 4, 6, 9, 9, 0, 9, 9, 0, 3, 3, 5, 5, 3, 5, 5, 2, 23, 23, 7]

cp's OEIS Frontend

A339082 a(n) is the number m such that F(prime(m)) is the greatest prime Fibonacci divisor of F(n)^2 + 1 where F(n) is the n-th Fibonacci number, or 0 if no such prime factor exists.

Table of values

List of values

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	4
7	3
8	4
9	5
10	5
11	6
12	6
13	5
14	6
15	7
16	7
17	3
18	7
19	7
20	4
21	9
22	9
23	4
24	9
25	9
26	3
27	10
28	10
29	2
30	10
31	10
32	5
33	4
34	5
35	5
36	4
37	6
38	6
39	0
40	6
41	14
42	14
43	3
44	14
45	15
46	15
47	4
48	15
49	15
50	7
51	4
52	7
53	7
54	5
55	2
56	5
57	5
58	2
59	2
60	0
61	4
62	4
63	6
64	6
65	4
66	6
67	9
68	9
69	0
70	9
71	9
72	0
73	3
74	3
75	5
76	5
77	3
78	5
79	5
80	2
81	23
82	23
83	7

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	4
7	3
8	4
9	5
10	5
11	6
12	6
13	5
14	6
15	7
16	7
17	3
18	7
19	7
20	4
21	9
22	9
23	4
24	9
25	9
26	3
27	10
28	10
29	2
30	10
31	10
32	5
33	4
34	5
35	5
36	4
37	6
38	6
39	0
40	6
41	14
42	14
43	3
44	14
45	15
46	15
47	4
48	15
49	15
50	7
51	4
52	7
53	7
54	5
55	2
56	5
57	5
58	2
59	2
60	0
61	4
62	4
63	6
64	6
65	4
66	6
67	9
68	9
69	0
70	9
71	9
72	0
73	3
74	3
75	5
76	5
77	3
78	5
79	5
80	2
81	23
82	23
83	7

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	4
7	3
8	4
9	5
10	5
11	6
12	6
13	5
14	6
15	7
16	7
17	3
18	7
19	7
20	4
21	9
22	9
23	4
24	9
25	9
26	3
27	10
28	10
29	2
30	10
31	10
32	5
33	4
34	5
35	5
36	4
37	6
38	6
39	0
40	6
41	14
42	14
43	3
44	14
45	15
46	15
47	4
48	15
49	15
50	7
51	4
52	7
53	7
54	5
55	2
56	5
57	5
58	2
59	2
60	0
61	4
62	4
63	6
64	6
65	4
66	6
67	9
68	9
69	0
70	9
71	9
72	0
73	3
74	3
75	5
76	5
77	3
78	5
79	5
80	2
81	23
82	23
83	7