cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A331789 T(b,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 in base b. Square array read by ascending antidiagonals.

Table of values

n a(n)
2 1
3 1
4 3
5 1
6 2
7 7
8 1
9 3
10 5
11 15
12 1
13 2
14 3
15 8
16 31
17 1
18 3
19 5
20 7
21 17
22 63
23 1
24 2
25 5
26 4
27 15
28 26
29 127
30 1
31 3
32 3
33 7
34 9
35 15
36 53
37 255
38 1
39 2
40 5
41 6
42 5
43 14
44 31
45 80
46 511
47 1
48 3
49 5
50 7
51 9
52 11
53 29
54 63
55 161
56 1023
57 1
58 2
59 3
60 4
61 9
62 6
63 23
64 24
65 63
66 242
67 2047
68 1
69 3
70 5
71 7
72 9
73 11
74 13
75 35
76 49
77 127
78 485
79 4095

List of values

[1, 1, 3, 1, 2, 7, 1, 3, 5, 15, 1, 2, 3, 8, 31, 1, 3, 5, 7, 17, 63, 1, 2, 5, 4, 15, 26, 127, 1, 3, 3, 7, 9, 15, 53, 255, 1, 2, 5, 6, 5, 14, 31, 80, 511, 1, 3, 5, 7, 9, 11, 29, 63, 161, 1023, 1, 2, 3, 4, 9, 6, 23, 24, 63, 242, 2047, 1, 3, 5, 7, 9, 11, 13, 35, 49, 127, 485, 4095]