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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.

A354618 a(n) = (sum of the digits of 5^n) - (sum of the digits of 2^n).

Table of values

n a(n)
0 0
1 3
2 3
3 0
4 6
5 6
6 9
7 12
8 12
9 18
10 33
11 24
12 9
13 3
14 12
15 18
16 33
17 42
18 45
19 30
20 30
21 36
22 42
23 33
24 45
25 48
26 39
27 54
28 42
29 42
30 54
31 57
32 48
33 27
34 42
35 33
36 45
37 48
38 57
39 63
40 69
41 87
42 99
43 93
44 93
45 54
46 42
47 60
48 72
49 93
50 75
51 72
52 51
53 42
54 45
55 75
56 111
57 135
58 141
59 114
60 117
61 120
62 102
63 81
64 78
65 78

List of values

[0, 3, 3, 0, 6, 6, 9, 12, 12, 18, 33, 24, 9, 3, 12, 18, 33, 42, 45, 30, 30, 36, 42, 33, 45, 48, 39, 54, 42, 42, 54, 57, 48, 27, 42, 33, 45, 48, 57, 63, 69, 87, 99, 93, 93, 54, 42, 60, 72, 93, 75, 72, 51, 42, 45, 75, 111, 135, 141, 114, 117, 120, 102, 81, 78, 78]

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

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