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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.

A239010 Exponents m such that the decimal expansion of 5^m exhibits its first zero from the right later than any previous exponent.

Table of values

n a(n)
1 0
2 2
3 3
4 5
5 6
6 9
7 11
8 15
9 17
10 18
11 25
12 26
13 30
14 33
15 57
16 58
17 153
18 1839
19 3290
20 4081
21 16431
22 577839
23 2190974
24 15167023
25 23155442
26 24477994
27 36290003
28 53687441
29 62497567
30 181850218
31 790111167
32 872257561
33 4531889178
34 26964400609
35 32626158305
36 268600630073

List of values

[0, 2, 3, 5, 6, 9, 11, 15, 17, 18, 25, 26, 30, 33, 57, 58, 153, 1839, 3290, 4081, 16431, 577839, 2190974, 15167023, 23155442, 24477994, 36290003, 53687441, 62497567, 181850218, 790111167, 872257561, 4531889178, 26964400609, 32626158305, 268600630073]