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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.

A075772 Difference between the n-th perfect power and the closest perfect power.

Table of values

n a(n)
1 3
2 3
3 1
4 1
5 7
6 2
7 2
8 4
9 4
10 13
11 15
12 17
13 19
14 4
15 3
16 3
17 16
18 25
19 20
20 9
21 9
22 13
23 13
24 33
25 19
26 18
27 18
28 39
29 41
30 28
31 17
32 17
33 47
34 49
35 51
36 53
37 55
38 57
39 59
40 39
41 24
42 24
43 65
44 67
45 69
46 35
47 35
48 38
49 75
50 77
51 79
52 47
53 36
54 36
55 85
56 87
57 23
58 23
59 68
60 10
61 10
62 12
63 95
64 97
65 99
66 101
67 40
68 40
69 65
70 107
71 100
72 11
73 11

List of values

[3, 3, 1, 1, 7, 2, 2, 4, 4, 13, 15, 17, 19, 4, 3, 3, 16, 25, 20, 9, 9, 13, 13, 33, 19, 18, 18, 39, 41, 28, 17, 17, 47, 49, 51, 53, 55, 57, 59, 39, 24, 24, 65, 67, 69, 35, 35, 38, 75, 77, 79, 47, 36, 36, 85, 87, 23, 23, 68, 10, 10, 12, 95, 97, 99, 101, 40, 40, 65, 107, 100, 11, 11]

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

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