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A082736 LCM of n-th group of terms in A074147. 2

%I #7 Aug 07 2015 03:06:19

%S 1,4,105,120,109395,55440,1856277675,42325920,966710699955,7210803600,

%T 303646176781042095,43790142876480,2432266195067253069525,

%U 6338767304469600,12793596869123737224933375,659267412349963697280

%N LCM of n-th group of terms in A074147.

%F a(1) = 1, a(2n) = LCM of next 2n even numbers. a(2n+1) = LCM of next 2n+1 odd numbers.

%p A061925 := proc(n) ceil(n^2/2)+1 ; end: A082736 := proc(n) seq(A061925(n-1)+2*k,k=0..n-1) ; ilcm(%) ; end: seq(A082736(n),n=1..20) ; # _R. J. Mathar_, Jul 17 2007

%Y Cf. A074147, A074148, A074149, A082735.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Apr 14 2003

%E More terms from _R. J. Mathar_, Jul 17 2007

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)