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%I #5 Apr 07 2021 20:09:20
%S 1,2,6,24,120,720,5040,36096,285000,2423808,22775088,226542688,
%T 2534993112,29951845088,382504742828,5166221435088
%N Number of permutations of 0..n-1 with all sums of 6 adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 02 2008