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 A135398 #7 Oct 12 2016 15:17:49
%S A135398 1,12,2304,7077888,347892350976,273593677362757632,
%T A135398 3442605166011971360784384,693087965674784425268322477539328,
%U A135398 2232592609368277258783200799359831235362816
%N A135398 a(n) = 3^n * 4^(n^2).
%C A135398 Hankel transform of A132863 .
%H A135398 G. C. Greubel, <a href="/A135398/b135398.txt">Table of n, a(n) for n = 0..25</a>
%F A135398 a(n) = 3^n*4^(n^2) = A000244(n)*A060757(n).
%t A135398 Table[3^n*4^(n^2), {n, 0, 10}] (* _G. C. Greubel_, Oct 12 2016 *)
%o A135398 (PARI) a(n)=3^n*4^n^2 \\ _Charles R Greathouse IV_, Oct 12 2016
%K A135398 nonn,easy
%O A135398 0,2
%A A135398 _Philippe Deléham_, Dec 11 2007