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A050029(2^n + 1).
1

%I #6 Dec 05 2013 19:56:53

%S 1,2,4,11,48,362,5030,133924,6977521,719087781,147394353130,

%T 60255915944715,49197429536084417,80280819225274033666,

%U 261914438169525117048056

%N A050029(2^n + 1).

%K nonn

%O 0,2

%A _Amarnath Murthy_, Jul 01 2004

%E Extended and description corrected by _Antti Karttunen_, Aug 25 2006