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%I #5 Apr 07 2021 20:02:20
%S 1,2,6,24,112,552,3712,27192,214364,1821054,17062880,174404598,
%T 1971151548,23606317248,300614239004,4085161670066
%N Number of permutations of floor(i*7/4), i=0..n-1, with all sums of 3 adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 02 2008