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Number of 0..20 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
0

%I #3 Mar 31 2012 12:35:37

%S 21,440,9178,188356,3959768,83153605,1738979798,36412811648,

%T 761311432412

%N Number of 0..20 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 21 of A171307.

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 06 2009