A331788 - cp's OEIS frontend

A331788 a(n) is the smallest m such that for any N, at least one of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) is the sum of digits of N.

n	a(n)
1	1
2	3
3	3
4	7
5	9
6	9
7	13
8	15
9	9
10	19
11	39
12	39
13	79
14	99
15	99
16	139
17	159
18	99
19	199
20	399
21	399
22	799
23	999
24	999
25	1399
26	1599
27	999
28	1999
29	3999
30	3999
31	7999
32	9999
33	9999
34	13999
35	15999
36	9999
37	19999
38	39999
39	39999
40	79999
41	99999
42	99999
43	139999
44	159999
45	99999
46	199999
47	399999
48	399999
49	799999

[1, 3, 3, 7, 9, 9, 13, 15, 9, 19, 39, 39, 79, 99, 99, 139, 159, 99, 199, 399, 399, 799, 999, 999, 1399, 1599, 999, 1999, 3999, 3999, 7999, 9999, 9999, 13999, 15999, 9999, 19999, 39999, 39999, 79999, 99999, 99999, 139999, 159999, 99999, 199999, 399999, 399999, 799999]

cp's OEIS Frontend

A331788 a(n) is the smallest m such that for any N, at least one of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) is the sum of digits of N.

Table of values

List of values