Search: id:A072486
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%I A072486
%S A072486 1,2,6,12,60,120,840,1680,5040,10080,110880,221760,2882880,5765760,
%T A072486 17297280,34594560,588107520,1176215040,22348085760,44696171520,
%U A072486 134088514560,268177029120,6168071669760,12336143339520,61680716697600
%N A072486 a(1) =1, a(n) = a(n-1) times smallest divisor of n other than 1.
%C A072486 a(n) = product of the smallest divisors > 1 of all the numbers from 2 
               to n.
%e A072486 a(5) = 60. a(6) = 1*2*3*2*5*2 = 120 Also a(6) = a(5) * 2 =120
%Y A072486 Sequence in context: A002201 A004490 A135060 this_sequence A096123 A081125 
               A138570
%Y A072486 Adjacent sequences: A072483 A072484 A072485 this_sequence A072487 A072488 
               A072489
%K A072486 nonn
%O A072486 1,2
%A A072486 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 13 2002
%E A072486 More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 
               25 2003

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