A260222 - cp's OEIS frontend

A260222 a(n)=gcd(n,F(n-1)), where F(n) is the n-th Fibonacci number.

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

[1, 1, 1, 2, 1, 1, 1, 1, 3, 2, 11, 1, 1, 1, 1, 2, 1, 1, 19, 1, 3, 2, 1, 1, 1, 1, 1, 2, 29, 1, 31, 1, 3, 2, 1, 1, 1, 1, 1, 2, 41, 1, 1, 1, 3, 2, 1, 1, 7, 1, 1, 2, 1, 1, 1, 1, 3, 2, 59, 1, 61, 1, 1, 2, 1, 1, 1, 1, 3, 2, 71, 1, 1, 1, 1, 2, 1, 13, 79, 1, 3, 2, 1]

cp's OEIS Frontend

A260222 a(n)=gcd(n,F(n-1)), where F(n) is the n-th Fibonacci number.

Table of values

List of values

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

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

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