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%I #10 Jul 13 2019 19:30:57
%S 1,5,169,42875,88529281,1572763671875,248679006649044049,
%T 356333757516508153671875,4663869092837765297703279248641,
%U 558720643076358108093837582958513671875,612058887069969285456490153219530731912451357649,6117651922857367443605981033627635368555142419249951171875,556511030566224080586773690363350894350192064787062589546222802473281
%N a(n) = (2^n + 3^n)^n for n>= 0.
%F a(n) = Sum_{k=0..n} binomial(n,k) * 2^(n*k) * 3^(n*(n-k)) for n >= 0.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Jul 13 2019