A022307 - cp's OEIS frontend

A022307 Number of distinct prime factors of n-th Fibonacci number.

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	3
17	1
18	3
19	2
20	4
21	3
22	2
23	1
24	4
25	2
26	2
27	4
28	4
29	1
30	5
31	2
32	4
33	3
34	2
35	3
36	5
37	3
38	3
39	3
40	6
41	2
42	5
43	1
44	5
45	5
46	3
47	1
48	6
49	3
50	5
51	3
52	4
53	2
54	6
55	4
56	6
57	5
58	3
59	2
60	8
61	2
62	3
63	5
64	6
65	3
66	5
67	3
68	5
69	5
70	7
71	2
72	8
73	2
74	4
75	5
76	5
77	4
78	6
79	2
80	9
81	7
82	3
83	1
84	9
85	4
86	3
87	4
88	9
89	2
90	10
91	4
92	6
93	4
94	2
95	6
96	9
97	4
98	5
99	6

[0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 2, 1, 2, 3, 3, 1, 3, 2, 4, 3, 2, 1, 4, 2, 2, 4, 4, 1, 5, 2, 4, 3, 2, 3, 5, 3, 3, 3, 6, 2, 5, 1, 5, 5, 3, 1, 6, 3, 5, 3, 4, 2, 6, 4, 6, 5, 3, 2, 8, 2, 3, 5, 6, 3, 5, 3, 5, 5, 7, 2, 8, 2, 4, 5, 5, 4, 6, 2, 9, 7, 3, 1, 9, 4, 3, 4, 9, 2, 10, 4, 6, 4, 2, 6, 9, 4, 5, 6]

cp's OEIS Frontend

A022307 Number of distinct prime factors of n-th Fibonacci number.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	3
17	1
18	3
19	2
20	4
21	3
22	2
23	1
24	4
25	2
26	2
27	4
28	4
29	1
30	5
31	2
32	4
33	3
34	2
35	3
36	5
37	3
38	3
39	3
40	6
41	2
42	5
43	1
44	5
45	5
46	3
47	1
48	6
49	3
50	5
51	3
52	4
53	2
54	6
55	4
56	6
57	5
58	3
59	2
60	8
61	2
62	3
63	5
64	6
65	3
66	5
67	3
68	5
69	5
70	7
71	2
72	8
73	2
74	4
75	5
76	5
77	4
78	6
79	2
80	9
81	7
82	3
83	1
84	9
85	4
86	3
87	4
88	9
89	2
90	10
91	4
92	6
93	4
94	2
95	6
96	9
97	4
98	5
99	6

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	3
17	1
18	3
19	2
20	4
21	3
22	2
23	1
24	4
25	2
26	2
27	4
28	4
29	1
30	5
31	2
32	4
33	3
34	2
35	3
36	5
37	3
38	3
39	3
40	6
41	2
42	5
43	1
44	5
45	5
46	3
47	1
48	6
49	3
50	5
51	3
52	4
53	2
54	6
55	4
56	6
57	5
58	3
59	2
60	8
61	2
62	3
63	5
64	6
65	3
66	5
67	3
68	5
69	5
70	7
71	2
72	8
73	2
74	4
75	5
76	5
77	4
78	6
79	2
80	9
81	7
82	3
83	1
84	9
85	4
86	3
87	4
88	9
89	2
90	10
91	4
92	6
93	4
94	2
95	6
96	9
97	4
98	5
99	6

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	3
17	1
18	3
19	2
20	4
21	3
22	2
23	1
24	4
25	2
26	2
27	4
28	4
29	1
30	5
31	2
32	4
33	3
34	2
35	3
36	5
37	3
38	3
39	3
40	6
41	2
42	5
43	1
44	5
45	5
46	3
47	1
48	6
49	3
50	5
51	3
52	4
53	2
54	6
55	4
56	6
57	5
58	3
59	2
60	8
61	2
62	3
63	5
64	6
65	3
66	5
67	3
68	5
69	5
70	7
71	2
72	8
73	2
74	4
75	5
76	5
77	4
78	6
79	2
80	9
81	7
82	3
83	1
84	9
85	4
86	3
87	4
88	9
89	2
90	10
91	4
92	6
93	4
94	2
95	6
96	9
97	4
98	5
99	6