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%I #20 May 19 2021 05:15:19
%S 0,1,3,12,21,81,252,729,2187,6480,19845,59049,176904,530712,1594323,
%T 4785156,14351094,43046721,129146724,387440172
%N Number of elements of GF(3^n) with trace 1 and subtrace 1.
%C Same as the number of elements of GF(3^n) with trace 2 and subtrace 1.
%H F. Ruskey, <a href="http://combos.org/TSGF3">Number of Elements of GF(3^n) with given trace and subtrace</a>
%e a(3;2,1)=3. Let GF(3^3) be defined by the field extension GF(3)[x]/( 1+b+2b^2+b^3 ). The three elements of GF(3^3) with trace 2 and subtrace 1 are { 2b, 1+b^2, 1+b+2b^2 }.
%Y Cf. A074000, A074001, A074002, A074003, A074005.
%K nonn,more
%O 1,3
%A _Frank Ruskey_ and Nate Kube, Aug 19 2002
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