Search: id:A025527
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%I A025527
%S A025527 1,1,1,2,2,12,12,48,144,1440,1440,17280,17280,241920,3628800,29030400,
%T A025527 29030400,522547200,522547200,10450944000,219469824000,4828336128000,
%U A025527 4828336128000,115880067072000,579400335360000,15064408719360000
%N A025527 a(n) = n!/LCM{1,2,...,n} = (n-1)!/LCM{C(n-1,0),C(n-1,1),...,C(n-1,n-1)}.
%C A025527 a(n)=a(n-1) iff n is prime. Thus a(1)=a(2)=a(3)=1 is the only triple 
               in this sequence. - Franz Vrabec (franz.vrabec(AT)planetuniqa.at), 
               Sep 10 2005
%C A025527 a(k)=a(k+1) for k=A006093. - Lekraj Beedassy (blekraj(AT)yahoo.com), 
               Aug 03 2006
%C A025527 a(n) are the partial products of A048671(n). [From Peter Luschny (peter(AT)luschny.de), 
               Sep 09 2009]
%H A025527 <a href="Sindx_Lc.html#lcm">Index entries for sequences related to lcm's</
               a>
%F A025527 a(n)=A000142(n)/A003418(n)=A000254(n)/A025529(n). - Franz Vrabec (franz.vrabec(AT)planetuniqa.at), 
               Sep 13 2005
%e A025527 a(5) = 2 as 5!/LCM(1..5) = 120/60 = 2.
%p A025527 seq(n!/lcm($1..n), n=1..30);
%Y A025527 Sequence in context: A109767 A131121 A055772 this_sequence A092144 A059187 
               A054916
%Y A025527 Adjacent sequences: A025524 A025525 A025526 this_sequence A025528 A025529 
               A025530
%K A025527 nonn
%O A025527 1,4
%A A025527 Clark Kimberling (ck6(AT)evansville.edu)

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