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A190385
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Numbers with prime factorization pqrs^3t^3.
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3
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83160, 98280, 128520, 143640, 154440, 173880, 201960, 216216, 219240, 225720, 231000, 234360, 238680, 266760, 273000, 273240, 279720, 282744, 309960, 316008, 322920, 325080, 334152, 344520, 348840, 355320, 357000, 368280, 373464, 382536
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listen;
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internal format)
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OFFSET
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1,1
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LINKS
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T. D. Noe, Table of n, a(n) for n = 1..1000
Will Nicholes, Prime Signatures
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MATHEMATICA
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f[n_]:=Sort[Last/@FactorInteger[n]]=={1, 1, 1, 3, 3}; Select[Range[600000], f]
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CROSSREFS
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Cf. A190382, A190383, A190384.
Sequence in context: A217127 A205269 A206323 * A201251 A125779 A032752
Adjacent sequences: A190382 A190383 A190384 * A190386 A190387 A190388
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KEYWORD
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nonn
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, May 09 2011
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STATUS
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approved
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