A214781 - cp's OEIS frontend

A214781 a(n) = smallest k>=2 such that n divides Fibonacci(k-1)+2.

n	a(n)
1	2
2	4
3	2
4	4
5	5
6	10
7	6
8	0
9	10
10	7
11	0
12	10
13	12
14	22
15	8
16	0
17	16
18	10
19	11
20	28
21	0
22	0
23	9
24	0
25	48
26	40
27	34
28	22
29	0
30	34
31	0
32	0
33	0
34	16
35	28
36	10
37	36
38	0
39	18
40	0
41	18
42	0
43	17
44	0
45	34
46	22
47	14
48	0
49	54
50	148
51	16
52	40
53	52
54	34
55	0
56	0
57	11
58	0
59	0
60	34
61	28
62	0
63	0
64	0
65	68
66	0
67	21
68	16

[2, 4, 2, 4, 5, 10, 6, 0, 10, 7, 0, 10, 12, 22, 8, 0, 16, 10, 11, 28, 0, 0, 9, 0, 48, 40, 34, 22, 0, 34, 0, 0, 0, 16, 28, 10, 36, 0, 18, 0, 18, 0, 17, 0, 34, 22, 14, 0, 54, 148, 16, 40, 52, 34, 0, 0, 11, 0, 0, 34, 28, 0, 0, 0, 68, 0, 21, 16]

cp's OEIS Frontend

A214781 a(n) = smallest k>=2 such that n divides Fibonacci(k-1)+2.

Table of values

List of values

n	a(n)
1	2
2	4
3	2
4	4
5	5
6	10
7	6
8	0
9	10
10	7
11	0
12	10
13	12
14	22
15	8
16	0
17	16
18	10
19	11
20	28
21	0
22	0
23	9
24	0
25	48
26	40
27	34
28	22
29	0
30	34
31	0
32	0
33	0
34	16
35	28
36	10
37	36
38	0
39	18
40	0
41	18
42	0
43	17
44	0
45	34
46	22
47	14
48	0
49	54
50	148
51	16
52	40
53	52
54	34
55	0
56	0
57	11
58	0
59	0
60	34
61	28
62	0
63	0
64	0
65	68
66	0
67	21
68	16

n	a(n)
1	2
2	4
3	2
4	4
5	5
6	10
7	6
8	0
9	10
10	7
11	0
12	10
13	12
14	22
15	8
16	0
17	16
18	10
19	11
20	28
21	0
22	0
23	9
24	0
25	48
26	40
27	34
28	22
29	0
30	34
31	0
32	0
33	0
34	16
35	28
36	10
37	36
38	0
39	18
40	0
41	18
42	0
43	17
44	0
45	34
46	22
47	14
48	0
49	54
50	148
51	16
52	40
53	52
54	34
55	0
56	0
57	11
58	0
59	0
60	34
61	28
62	0
63	0
64	0
65	68
66	0
67	21
68	16

n	a(n)
1	2
2	4
3	2
4	4
5	5
6	10
7	6
8	0
9	10
10	7
11	0
12	10
13	12
14	22
15	8
16	0
17	16
18	10
19	11
20	28
21	0
22	0
23	9
24	0
25	48
26	40
27	34
28	22
29	0
30	34
31	0
32	0
33	0
34	16
35	28
36	10
37	36
38	0
39	18
40	0
41	18
42	0
43	17
44	0
45	34
46	22
47	14
48	0
49	54
50	148
51	16
52	40
53	52
54	34
55	0
56	0
57	11
58	0
59	0
60	34
61	28
62	0
63	0
64	0
65	68
66	0
67	21
68	16