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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.

A229975 The base 8 expansion of the number of trailing zeros of the base 8 expansion of (8^n)!.

Table of values

n a(n)
1 2
2 25
3 252
4 2525
5 25252
6 252525
7 2525252
8 25252525
9 252525252
10 2525252525
11 25252525252
12 252525252525
13 2525252525252
14 25252525252525
15 252525252525252
16 2525252525252525
17 25252525252525252
18 252525252525252525
19 2525252525252525252
20 25252525252525252525

List of values

[2, 25, 252, 2525, 25252, 252525, 2525252, 25252525, 252525252, 2525252525, 25252525252, 252525252525, 2525252525252, 25252525252525, 252525252525252, 2525252525252525, 25252525252525252, 252525252525252525, 2525252525252525252, 25252525252525252525]

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

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