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Search: id:A165315
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| A165315 |
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a(1)=2. If s is the largest integer such that n = r^s, r = positive integer, then a(n) = the smallest integer > a(n-1) such that a(n) = t^s, t = positive integer. |
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+0
1
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| 2, 3, 4, 9, 10, 11, 12, 27, 36, 37, 38, 39, 40, 41, 42, 81
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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The variable s need not necessarily be the largest integer such that a(n) = t^s, t = some positive integer. (For example, a(3) = 4 because 4 is a first power, like 3.)
If a(1) had equaled 1 instead, then the sequence would have been just the sequence of positive integers, obviously.
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EXAMPLE
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a(9) = 36 because 9 = 3^2, and because 36 is the smallest square > a(8) = 27.
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CROSSREFS
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Sequence in context: A037468 A047454 A081870 this_sequence A047339 A084368 A007498
Adjacent sequences: A165312 A165313 A165314 this_sequence A165316 A165317 A165318
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KEYWORD
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more,nonn
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AUTHOR
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Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Sep 14 2009
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