%I

%S 18,323,5764,100665,1814085,32631672,584061094,10469428612,

%T 187305554285

%N Number of 0..17 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 18 of A171307.

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 06 2009