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Number of irreducible GF(2)[X]-polynomials in range [0,n].
23

%I #7 Mar 31 2012 14:02:20

%S 0,0,1,2,2,2,2,3,3,3,3,4,4,5,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,8,8,8,

%T 8,8,8,9,9,9,9,10,10,10,10,10,10,11,11,11,11,11,11,11,11,12,12,12,12,

%U 13,13,14,14,14,14,14,14,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16

%N Number of irreducible GF(2)[X]-polynomials in range [0,n].

%C Analogous to A000720.

%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>

%Y Partial sums of A091225. A062692(n) = a(2^n).

%K nonn

%O 0,4

%A _Antti Karttunen_, Jan 03 2004