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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.

A190311 Number of nonzero digits when writing n in base where place values are positive cubes, cf. A000433.

Table of values

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

List of values

[0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3]

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