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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

Index to sequences related to prime signature

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 January 17 00:44 EST 2019. Contains 319206 sequences. (Running on oeis4.)