%I #3 Mar 31 2012 12:35:37
%S 28,784,21920,611758,17110793,478246241,13361842670,373489063240
%N Number of 1..28 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1
%C column 28 of A171275.
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 06 2009