A204979 - cp's OEIS frontend

A204979 Least k such that n divides 2^(k-1)-2^(j-1) for some j satisfying 1<=j

n	a(n)
1	2
2	3
3	3
4	4
5	5
6	4
7	4
8	5
9	7
10	6
11	11
12	5
13	13
14	5
15	5
16	6
17	9
18	8
19	19
20	7
21	7
22	12
23	12
24	6
25	21
26	14
27	19
28	6
29	29
30	6
31	6
32	7
33	11
34	10
35	13
36	9
37	37
38	20
39	13
40	8
41	21
42	8
43	15
44	13
45	13
46	13
47	24
48	7
49	22
50	22

[2, 3, 3, 4, 5, 4, 4, 5, 7, 6, 11, 5, 13, 5, 5, 6, 9, 8, 19, 7, 7, 12, 12, 6, 21, 14, 19, 6, 29, 6, 6, 7, 11, 10, 13, 9, 37, 20, 13, 8, 21, 8, 15, 13, 13, 13, 24, 7, 22, 22]

cp's OEIS Frontend

A204979 Least k such that n divides 2^(k-1)-2^(j-1) for some j satisfying 1<=j

Table of values

List of values

n	a(n)
1	2
2	3
3	3
4	4
5	5
6	4
7	4
8	5
9	7
10	6
11	11
12	5
13	13
14	5
15	5
16	6
17	9
18	8
19	19
20	7
21	7
22	12
23	12
24	6
25	21
26	14
27	19
28	6
29	29
30	6
31	6
32	7
33	11
34	10
35	13
36	9
37	37
38	20
39	13
40	8
41	21
42	8
43	15
44	13
45	13
46	13
47	24
48	7
49	22
50	22

n	a(n)
1	2
2	3
3	3
4	4
5	5
6	4
7	4
8	5
9	7
10	6
11	11
12	5
13	13
14	5
15	5
16	6
17	9
18	8
19	19
20	7
21	7
22	12
23	12
24	6
25	21
26	14
27	19
28	6
29	29
30	6
31	6
32	7
33	11
34	10
35	13
36	9
37	37
38	20
39	13
40	8
41	21
42	8
43	15
44	13
45	13
46	13
47	24
48	7
49	22
50	22

n	a(n)
1	2
2	3
3	3
4	4
5	5
6	4
7	4
8	5
9	7
10	6
11	11
12	5
13	13
14	5
15	5
16	6
17	9
18	8
19	19
20	7
21	7
22	12
23	12
24	6
25	21
26	14
27	19
28	6
29	29
30	6
31	6
32	7
33	11
34	10
35	13
36	9
37	37
38	20
39	13
40	8
41	21
42	8
43	15
44	13
45	13
46	13
47	24
48	7
49	22
50	22