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.

A226171 Smallest base in which n is not Niven (or zero if n is Niven in every base).

Table of values

n a(n)
1 0
2 0
3 2
4 0
5 2
6 0
7 2
8 6
9 2
10 4
11 2
12 8
13 2
14 2
15 2
16 6
17 2
18 8
19 2
20 7
21 5
22 2
23 2
24 14
25 2
26 2
27 2
28 2
29 2
30 2
31 2
32 6
33 2
34 3
35 2
36 8
37 2
38 2
39 2
40 12
41 2
42 3
43 2
44 2
45 2
46 2
47 2
48 14
49 2
50 2
51 2
52 2
53 2
54 2
55 3
56 2
57 2
58 2
59 2
60 8
61 2
62 2
63 2
64 6
65 2
66 3
67 2
68 3
69 3
70 2
71 2
72 14
73 2
74 2
75 2
76 2
77 2
78 2
79 2
80 8
81 5
82 2
83 2
84 5
85 2
86 2

List of values

[0, 0, 2, 0, 2, 0, 2, 6, 2, 4, 2, 8, 2, 2, 2, 6, 2, 8, 2, 7, 5, 2, 2, 14, 2, 2, 2, 2, 2, 2, 2, 6, 2, 3, 2, 8, 2, 2, 2, 12, 2, 3, 2, 2, 2, 2, 2, 14, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 8, 2, 2, 2, 6, 2, 3, 2, 3, 3, 2, 2, 14, 2, 2, 2, 2, 2, 2, 2, 8, 5, 2, 2, 5, 2, 2]