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 A108395 #2 Mar 30 2012 18:39:49 %S A108395 1,2,12,288,161280,1393920,61479419904000,592612475535360, %T A108395 6670903752021072936960 %N A108395 Number of pluperfect Latin squares of order n. %C A108395 A Latin square is pluperfect if in each possible dissection of the Latin square into n translates of congruent rectangular blocks, no block contains duplicate symbols. For any prime number p, a(p) = A002860(p) and a(p^2) = A107739(p). %Y A108395 Cf. A002860, A107739. %K A108395 hard,nice,nonn %O A108395 1,2 %A A108395 _William Rex Marshall_, Jul 02 2005