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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.

A018866 7^a(n) is smallest power of 7 beginning with n.

Table of values

n a(n)
1 0
2 4
3 3
4 2
5 8
6 14
7 1
8 7
9 13
10 45
11 6
12 38
13 12
14 57
15 31
16 5
17 50
18 37
19 11
20 69
21 43
22 30
23 17
24 4
25 49
26 36
27 23
28 10
29 68
30 55
31 42
32 29
33 16
34 3
35 61
36 48
37 35
38 106
39 22
40 9
41 67
42 138
43 54
44 41
45 28
46 99
47 15
48 228
49 2
50 60
51 131
52 47
53 260
54 34
55 21
56 92
57 8
58 150
59 66
60 137
61 53
62 195
63 40
64 182
65 27
66 98
67 14
68 85
69 298
70 72
71 285

List of values

[0, 4, 3, 2, 8, 14, 1, 7, 13, 45, 6, 38, 12, 57, 31, 5, 50, 37, 11, 69, 43, 30, 17, 4, 49, 36, 23, 10, 68, 55, 42, 29, 16, 3, 61, 48, 35, 106, 22, 9, 67, 138, 54, 41, 28, 99, 15, 228, 2, 60, 131, 47, 260, 34, 21, 92, 8, 150, 66, 137, 53, 195, 40, 182, 27, 98, 14, 85, 298, 72, 285]

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

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