%I #3 Mar 31 2012 12:35:36
%S 7,49,338,2318,16018,109747,749530,5133206,35065504,239373097,
%T 1635980248,11156399766,76079006282,519915363356
%N Number of 1..7 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 7 of A171275.
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 06 2009