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.

A268236 Fouriest transform of n: write n in that base b >= 4 which maximizes the number of 4's; in case of a tie pick the smallest b; sequence gives n in base b.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 11
6 12
7 13
8 20
9 14
10 14
11 14
12 14
13 14
14 24
15 14
16 24
17 14
18 24
19 34
20 40
21 41
22 42
23 43
24 44
25 41
26 42
27 43
28 44
29 104
30 42
31 43
32 44
33 45
34 114
35 43
36 44
37 45
38 46
39 124
40 44
41 45
42 46
43 47
44 44
45 140
46 141
47 142
48 44
49 144
50 46
51 47
52 44
53 104
54 204
55 47
56 44
57 49
58 134
59 214
60 44
61 141
62 142
63 143
64 144
65 145

List of values

[0, 1, 2, 3, 4, 11, 12, 13, 20, 14, 14, 14, 14, 14, 24, 14, 24, 14, 24, 34, 40, 41, 42, 43, 44, 41, 42, 43, 44, 104, 42, 43, 44, 45, 114, 43, 44, 45, 46, 124, 44, 45, 46, 47, 44, 140, 141, 142, 44, 144, 46, 47, 44, 104, 204, 47, 44, 49, 134, 214, 44, 141, 142, 143, 144, 145]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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