Search: id:A126706
Results 1-1 of 1 results found.

%I A126706
%S A126706 12,18,20,24,28,36,40,44,45,48,50,52,54,56,60,63,68,72,75,76,80,84,88,
%T A126706 90,92,96,98,99,100,104,108,112,116,117,120,124,126,132,135,136,140,144,
%U A126706 147,148,150,152,153,156,160,162,164,168,171,172,175,176,180,184,188
%N A126706 Positive integers which are neither squarefree integers nor prime powers.
%H A126706 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%e A126706 45 is in the sequence because 45=3^2*5, i.e. neither squarefree nor a 
               prime power.
%p A126706 with(numtheory): a:=proc(n) if mobius(n)=0 and nops(factorset(n))>1 then 
               n else fi end: seq(a(n),n=1..230); - Emeric Deutsch (deutsch(AT)duke.poly.edu), 
               Feb 17 2007
%t A126706 Select[Range[200], Max @@ Last /@ FactorInteger[ # ] >1 && Length[FactorInteger[ 
               # ]] > 1 &] (*Chandler*)
%Y A126706 Cf. A005117, A000961, A059404.
%Y A126706 Sequence in context: A007624 A036456 A102467 this_sequence A123711 A059404 
               A005101
%Y A126706 Adjacent sequences: A126703 A126704 A126705 this_sequence A126707 A126708 
               A126709
%K A126706 nonn
%O A126706 1,1
%A A126706 Leroy Quet Feb 11 2007
%E A126706 Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu) and Ray Chandler 
               (rayjchandler(AT)sbcglobal.net), Feb 17 2007

Search completed in 0.001 seconds