A332580 - cp's OEIS frontend

A332580 a(n) = minimal positive k such that the concatenation of the decimal digits 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	80
3	1885
4	6838
5	1
6	44
7	13
8	2
9	1311
10	18
11	197
12	20
13	53
14	134
15	993
16	44
17	175
18	124518
19	263
20	26
21	107
22	10
23	5
24	62
25	15
26	33172
27	9
28	14
29	317
30	708
31	1501
32	214
33	37
34	34
35	67
36	270
37	19
38	20188
39	78277
40	10738
41	287
42	2390
43	695
44	2783191412912
45	3
46	700
47	8303
48	350
49	21
50	100
51	2249
52	21326

[1, 80, 1885, 6838, 1, 44, 13, 2, 1311, 18, 197, 20, 53, 134, 993, 44, 175, 124518, 263, 26, 107, 10, 5, 62, 15, 33172, 9, 14, 317, 708, 1501, 214, 37, 34, 67, 270, 19, 20188, 78277, 10738, 287, 2390, 695, 2783191412912, 3, 700, 8303, 350, 21, 100, 2249, 21326]

cp's OEIS Frontend

A332580 a(n) = minimal positive k such that the concatenation of the decimal digits 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