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%I #7 Mar 31 2012 14:02:20
%S 0,0,0,1,2,3,0,4,5,6,0,7,0,8,9,10,11,12,0,13,14,15,16,17,0,18,19,20,
%T 21,22,0,23,24,25,26,27,0,28,29,30,0,31,32,33,34,35,0,36,37,38,39,40,
%U 41,42,0,43,44,45,0,46,0,47,48,49,50,51,0,52,53,54,55,56,0,57,58,59
%N Inverse function of A091242: position in A091242 if the n-th GF(2)[X] polynomial is reducible, 0 otherwise.
%C Analogous to A066246.
%H A. Karttunen, <a href="/A091247/a091247.scm.txt">Scheme-program for computing this sequence.</a>
%H <a href="/index/Ge#GF2X">Index entries for sequences operating on GF(2)[X]-polynomials</a>
%F a(n) = A091245(n) * A091247(n).
%Y Inverse of A091242.
%K nonn
%O 1,5
%A _Antti Karttunen_, Jan 03 2004
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