This article is from the Puzzles FAQ, by Chris Cole firstname.lastname@example.org and Matthew Daly email@example.com with numerous contributions by others.
Title: Cliff Puzzle 16: Undulating Squares
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* * *
A square number is of the form y=x**2. For example, 25 is a square
Undulating numbers are of the form: ababababab... For example, the
following are undulating numbers: 1717171, 282828, etc.
1. Are there any undulating square numbers?
2. Are there any undulating cube numbers?
In article <1992Oct30.firstname.lastname@example.org> you write:
: 1. Are there any undulating square numbers?
11^2 = 121
: 2. Are there any undulating cube numbers?
7^3 = 343
(yes, I know they're short, but they qualify!)
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