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LCM of terms in periodic part of continued fraction expansion of square root of 1+2^n.
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%I #4 Oct 15 2013 22:31:40

%S 2,4,3,8,10,16,66,32,220,64,235620,128,360360,256,2508660,512,

%T 16290726273360,1024,23508390120198798054240,2048,

%U 465977246353354335600,4096,3026207803243202829468977760,8192

%N LCM of terms in periodic part of continued fraction expansion of square root of 1+2^n.

%t Table[Apply[LCM, Last[ContinuedFraction[Sqrt[1+2^u]]]], {u, 1, 25}]

%Y Cf. A077624-A077635.

%K nonn

%O 1,1

%A _Labos Elemer_, Nov 13 2002