A332563 - cp's OEIS frontend

A332563 a(n) = minimal positive k such that the concatenation of the binary expansions of n,n+1,...,n+k is divisible by n+k+1, or -1 if no such k exists.

n	a(n)
1	1
2	6
3	253
4	160
5	23
6	6
7	577
8	14
9	1
10	4
11	383
12	8
13	1591
14	18
15	169
16	42
17	1879
18	210
19	57
20	20
21	69
22	1354
23	13
24	86
25	225
26	1532
27	577
28	300
29	13
30	30
31	6419
32	312
33	30639
34	12
35	151
36	8
37	89
38	2720
39	29
40	5830
41	1
42	1450
43	195
44	478
45	55
46	166528
47	127
48	1074
49	3559
50	252
51	41

[1, 6, 253, 160, 23, 6, 577, 14, 1, 4, 383, 8, 1591, 18, 169, 42, 1879, 210, 57, 20, 69, 1354, 13, 86, 225, 1532, 577, 300, 13, 30, 6419, 312, 30639, 12, 151, 8, 89, 2720, 29, 5830, 1, 1450, 195, 478, 55, 166528, 127, 1074, 3559, 252, 41]

cp's OEIS Frontend

A332563 a(n) = minimal positive k such that the concatenation of the binary expansions of n,n+1,...,n+k is divisible by n+k+1, or -1 if no such k exists.

Table of values

List of values