%I #7 Oct 23 2019 17:17:50
%S 1,1,5,17,57,190,623,2010,6395,20103,62561,193062,591637,1802551,
%T 5465275,16503365,49665179,149033583,446131159,1332749213,3974445543,
%U 11834777320,35196098205,104558824915,310332568225,920350334943
%N a(n) = A027082(n, 2n-6).
%K nonn
%O 3,3
%A _Clark Kimberling_