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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.

A328290 Table T(b,n) = #{ k > 0 | nk has only distinct and nonzero digits in base b }, b >= 2, 1 <= n <= A051846(b).

Table of values

n a(n)
2 1
3 4
4 1
5 0
6 0
7 1
8 0
9 1
10 15
11 5
12 9
13 0
14 2
15 3
16 2
17 0
18 4
19 1
20 1
21 0
22 2
23 1
24 2
25 0
26 0
27 1
28 1
29 0
30 0
31 0
32 0
33 0
34 0
35 0
36 2
37 0
38 0
39 1
40 0
41 0
42 0
43 0
44 0
45 0
46 0
47 0
48 1
49 0
50 0
51 0
52 0
53 0
54 1
55 0
56 0
57 0
58 0
59 0
60 0
61 0
62 0
63 1
64 0
65 0
66 1
67 64
68 42
69 21
70 9
71 0
72 14
73 8
74 4
75 7
76 0
77 6
78 4
79 3
80 6
81 0
82 3
83 2
84 5
85 2
86 0
87 4
88 5
89 3
90 2
91 0
92 0
93 2
94 1
95 2
96 0
97 2
98 1
99 2
100 1
101 0
102 1
103 2
104 1
105 2
106 0
107 1
108 3
109 1
110 1
111 0
112 1
113 1
114 2
115 1
116 0
117 0
118 0
119 0
120 2

List of values

[1, 4, 1, 0, 0, 1, 0, 1, 15, 5, 9, 0, 2, 3, 2, 0, 4, 1, 1, 0, 2, 1, 2, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 64, 42, 21, 9, 0, 14, 8, 4, 7, 0, 6, 4, 3, 6, 0, 3, 2, 5, 2, 0, 4, 5, 3, 2, 0, 0, 2, 1, 2, 0, 2, 1, 2, 1, 0, 1, 2, 1, 2, 0, 1, 3, 1, 1, 0, 1, 1, 2, 1, 0, 0, 0, 0, 2]