Search: id:A114561
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%I A114561
%S A114561 0,1,4,256,
%T A114561 1340780792994259709957402499820584612747936582059239337772356144372176403007354697680187429816690342769003185\
               8186486050853753882811946569946433649006084096
%N A114561 a(0) = 0; thereafter a(n+1) = 4^a(n).
%C A114561 Or, define two sequences by q(0)=0, p(n)=2^q(n), q(n+1)=p(n)^2; sequence 
               gives q(n).
%C A114561 4-ish analog of A014221 and A014222. - Henry Bottomley, Feb 16 2006
%Y A114561 Cf. A114560, A081651, A014421, A014422.
%Y A114561 Sequence in context: A057156 A132656 A137840 this_sequence A068417 A116967 
               A003382
%Y A114561 Adjacent sequences: A114558 A114559 A114560 this_sequence A114562 A114563 
               A114564
%K A114561 nonn
%O A114561 0,3
%A A114561 Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Feb 15 2006

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