Distinct power numbers: Difference between revisions

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=={{header|Ruby}}==

<syntaxhighlight lang="ruby">a = (2..5).to_a

p a.product(a).map{_1 ** _2}.sort.uniq</syntaxhighlight>

{{out}}

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[4, 8, 9, 16, 25, 27, 32, 64, 81, 125, 243, 256, 625, 1024, 3125]