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A127602 Integer part of 5th root of product of first n primes. 4
1, 1, 1, 2, 4, 7, 13, 24, 46, 91, 182, 375, 788, 1672, 3612, 7991, 18062, 41100, 95294, 223520, 527208, 1263303, 3057195, 7502417, 18730768, 47143287, 119120718, 303294169, 775085050, 1995101748, 5256852524, 13937345067, 37284143091 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
MATHEMATICA
a = {}; Do[b = 1; Do[b = b Prime[x], {x, 1, n}]; AppendTo[a, Floor[b^(1/5)]], {n, 1, 50}]; a
Floor[Surd[#, 5]]&/@FoldList[Times, Prime[Range[40]]] (* Harvey P. Dale, Nov 16 2017 *)
CROSSREFS
Sequence in context: A191526 A005255 A086445 * A113291 A102112 A102113
KEYWORD
nonn
AUTHOR
Artur Jasinski, Jan 19 2007
STATUS
approved

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Last modified February 21 10:10 EST 2024. Contains 370228 sequences. (Running on oeis4.)