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A046391 Odd numbers with exactly 5 distinct prime factors. 5

%I

%S 15015,19635,21945,23205,25935,26565,31395,33495,33915,35805,36465,

%T 39585,40755,41055,42315,42735,45885,47355,49335,49665,50505,51051,

%U 51765,53295,54285,55335,55965,57057,57855,58695,61215,61845,62205

%N Odd numbers with exactly 5 distinct prime factors.

%H T. D. Noe, <a href="/A046391/b046391.txt">Table of n, a(n) for n=1..1000</a>

%F A051270 INTERSECT A005408.

%e 50505 = 3 * 5 * 7 * 13 * 37.

%p isA046391 := proc(n)

%p type(n,'odd') and (A001221(n) = 5 ) ;

%p end proc:

%p for n from 1 do

%p if isA046391(n) then

%p print(n);

%p end if;

%p end do: # _R. J. Mathar_, Nov 10 2014

%t f[n_]:=Last/@FactorInteger[n]=={1,1,1,1,1}&&FactorInteger[n][[1,1]]>2; lst={};Do[If[f[n],AppendTo[lst,n]],{n,9!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Nov 23 2009 *)

%Y Cf. A046318, A046407.

%K nonn

%O 1,1

%A _Patrick De Geest_, Jun 15 1998

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Last modified March 20 21:49 EDT 2019. Contains 321352 sequences. (Running on oeis4.)