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 A179703 Numbers of the form p^6*q^2*r where p, q, and r are distinct primes. 2
 2880, 4032, 4800, 6336, 7488, 9408, 9792, 10944, 11200, 13248, 14580, 15680, 16704, 17600, 17856, 20412, 20800, 21312, 23232, 23616, 24768, 27072, 27200, 30400, 30528, 32076, 32448, 33984, 34496, 35136, 36450, 36800, 37908, 38592, 38720 (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 MATHEMATICA f[n_]:=Sort[Last/@FactorInteger[n]]=={1, 2, 6}; Select[Range[40000], f] PROG (PARI) list(lim)=my(v=List(), t1, t2); forprime(p=2, (lim\12)^(1/6), t1=p^6; forprime(q=2, sqrt(lim\t1), if(p==q, next); t2=t1*q^2; forprime(r=2, lim\t2, if(p==r||q==r, next); listput(v, t2*r)))); vecsort(Vec(v)) \\ Charles R Greathouse IV, Jul 24 2011 CROSSREFS Sequence in context: A101999 A066174 A175750 * A260369 A134856 A066407 Adjacent sequences: A179700 A179701 A179702 * A179704 A179705 A179706 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Jul 24 2010 STATUS approved

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Last modified March 21 23:08 EDT 2023. Contains 361412 sequences. (Running on oeis4.)