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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.

A180698 15^a(n) is smallest power of 15 beginning with n.

Table of values

n a(n)
1 0
2 2
3 3
4 15
5 4
6 16
7 5
8 11
9 17
10 57
11 6
12 12
13 86
14 18
15 1
16 24
17 7
18 47
19 13
20 87
21 36
22 2
23 93
24 42
25 8
26 116
27 65
28 31
29 14
30 105
31 71
32 37
33 3
34 128
35 94
36 60
37 26
38 9
39 134
40 100
41 66
42 49
43 15
44 140
45 123
46 106
47 72
48 55
49 21
50 4
51 129
52 112
53 95
54 78
55 44
56 27
57 10
58 152
59 135
60 101
61 84
62 67
63 50
64 33
65 16
66 158
67 141
68 124
69 107

List of values

[0, 2, 3, 15, 4, 16, 5, 11, 17, 57, 6, 12, 86, 18, 1, 24, 7, 47, 13, 87, 36, 2, 93, 42, 8, 116, 65, 31, 14, 105, 71, 37, 3, 128, 94, 60, 26, 9, 134, 100, 66, 49, 15, 140, 123, 106, 72, 55, 21, 4, 129, 112, 95, 78, 44, 27, 10, 152, 135, 101, 84, 67, 50, 33, 16, 158, 141, 124, 107]

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

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