%I #6 Mar 30 2012 18:52:05
%S 4,36,36,144,144,144,400,400,400,400,900,900,900,900,900,1764,1764,
%T 1764,1764,1764,1764,3136,3136,3136,3136,3136,3136,3136,5184,5184,
%U 5184,5184,5184,5184,5184,5184,8100,8100,8100,8100,8100,8100,8100,8100,8100
%N Denominator of fractions in A171676.
%C (Antidiagonal writing) fractions are 3/4, 5/36,5/36, 7/144,7/144,7/144, . Numerator:A171676. Rydberg-Ritz.
%F n times A035287(n+2).
%K nonn,frac
%O 0,1
%A _Paul Curtz_, Nov 28 2010