This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A326555 #12 Jun 14 2025 18:50:20
%S A326555 1,5,169,42875,88529281,1572763671875,248679006649044049,
%T A326555 356333757516508153671875,4663869092837765297703279248641,
%U A326555 558720643076358108093837582958513671875,612058887069969285456490153219530731912451357649,6117651922857367443605981033627635368555142419249951171875,556511030566224080586773690363350894350192064787062589546222802473281
%N A326555 a(n) = (2^n + 3^n)^n for n>= 0.
%F A326555 a(n) = Sum_{k=0..n} binomial(n,k) * 2^(n*k) * 3^(n*(n-k)) for n >= 0.
%t A326555 Table[(2^n+3^n)^n,{n,0,20}] (* _Harvey P. Dale_, Jun 14 2025 *)
%K A326555 nonn
%O A326555 0,2
%A A326555 _Paul D. Hanna_, Jul 13 2019