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 A179667 Products of the 5th power of a prime and 2 distinct primes (p^5*q*r). 9
 480, 672, 1056, 1120, 1248, 1632, 1760, 1824, 2080, 2208, 2430, 2464, 2720, 2784, 2912, 2976, 3040, 3402, 3552, 3680, 3808, 3936, 4128, 4256, 4512, 4576, 4640, 4960, 5088, 5152, 5346, 5664, 5856, 5920, 5984, 6318, 6432, 6496, 6560, 6688, 6816, 6880 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS T. D. Noe, Table of n, a(n) for n = 1..1000 Will Nicholes, Prime Signatures MAPLE op(select(n->nops(factorset(n))=3 and sort([seq(op(2, a), a=ifactors(n)[2])])=[1, 1, 5], [\$1..6880])); # Paolo P. Lava, Jul 18 2019 MATHEMATICA f[n_]:=Sort[Last/@FactorInteger[n]]=={1, 1, 5}; Select[Range[10000], f] PROG (PARI) list(lim)=my(v=List(), t); forprime(p=2, (lim\6)^(1/5), forprime(q=2, sqrt(lim\p^5), if(p==q, next); t=p^5*q; forprime(r=q+1, lim\t, if(p==r, next); listput(v, t*r)))); vecsort(Vec(v)) \\ Charles R Greathouse IV, Jul 20 2011 CROSSREFS Sequence in context: A019287 A258551 A257415 * A108876 A293187 A206200 Adjacent sequences:  A179664 A179665 A179666 * A179668 A179669 A179670 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Jul 23 2010 STATUS approved

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Last modified October 17 22:40 EDT 2019. Contains 328134 sequences. (Running on oeis4.)