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

%S 1,2,6,22,118,656,4586,36656,332050,3326146,36615032,439501232,

%T 5741754786,80586187678

%N Number of permutations of 1..n v[1..n] with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 06 2009