A060383 - cp's OEIS frontend

A060383 a(1) = a(2) = 1; for n >2, a(n) = smallest prime factor of n-th Fibonacci number.

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	2
7	13
8	3
9	2
10	5
11	89
12	2
13	233
14	13
15	2
16	3
17	1597
18	2
19	37
20	3
21	2
22	89
23	28657
24	2
25	5
26	233
27	2
28	3
29	514229
30	2
31	557
32	3
33	2
34	1597
35	5
36	2
37	73
38	37
39	2
40	3
41	2789
42	2
43	433494437
44	3
45	2
46	139
47	2971215073
48	2
49	13
50	5
51	2
52	3
53	953
54	2
55	5
56	3
57	2
58	59
59	353
60	2
61	4513
62	557
63	2
64	3
65	5
66	2
67	269
68	3
69	2
70	5

[1, 1, 2, 3, 5, 2, 13, 3, 2, 5, 89, 2, 233, 13, 2, 3, 1597, 2, 37, 3, 2, 89, 28657, 2, 5, 233, 2, 3, 514229, 2, 557, 3, 2, 1597, 5, 2, 73, 37, 2, 3, 2789, 2, 433494437, 3, 2, 139, 2971215073, 2, 13, 5, 2, 3, 953, 2, 5, 3, 2, 59, 353, 2, 4513, 557, 2, 3, 5, 2, 269, 3, 2, 5]

cp's OEIS Frontend

A060383 a(1) = a(2) = 1; for n >2, a(n) = smallest prime factor of n-th Fibonacci number.

Table of values

List of values