%I #5 Mar 30 2012 18:39:10
%S 1,2,0,-2,2,0,-8,-16,0,16,-16,0,16,32,0,-32,-16,0,64,128,0,-512,2048,
%T 0,-8192,8192,0,-8192,8192,0,-8192,-16384,0,16384,8192,0,-8192,-16384,
%U 0,65536,-262144,0,1048576,-1048576,0,1048576,524288,0,-131072,131072,0,-32768,8192,0,-32768,-65536,0,262144
%N Determinant of the n X n matrix M_n(i,j) = C(i+j,i) (mod 3).
%F a(3k+2) = 0
%K sign
%O 0,2
%A _Benoit Cloitre_, Nov 25 2002