%I #8 Oct 03 2021 19:25:42
%S 1,2,5,12,34,102,374,1680,10271,91878,1308856,31048616,1243411976,
%T 83446254312,9312844044030,1715236203607456
%N a(n) is the number of vector subspaces in (F_3)^n, counted up to coordinate permutation.
%Y Row sums of A347970. Cf. A006117, A076766.
%K nonn
%O 0,2
%A _Álvar Ibeas_, Sep 30 2021