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 A092416 #2 Mar 31 2012 13:21:57
%S A092416 1,1,3,78,19656,61405344,2863085569344,2357871215948696448,
%T A092416 39557911075122642360238080,15325544184478930809864207383592960,
%U A092416 153255393906487099048546500580688904121221120
%N A092416 Determinant of the n X n matrix with entries gcd(X,Y)^gcd(X,Y).
%e A092416 for n = 3:
%e A092416 [1,1,1]
%e A092416 [1,4,1]
%e A092416 [1,1,27]
%e A092416 with det 78.
%o A092416 (PARI) for(i=0,10,m=matrix(i,i,X,Y,gcd(X,Y)^gcd(X,Y));print1(","matdet(m)))
%Y A092416 Cf. A000178:super-factorials, A001088:product(A000010(i)).
%K A092416 nonn
%O A092416 0,3
%A A092416 _Jon Perry_, Mar 22 2004