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%I #5 Apr 07 2021 20:12:11
%S 1,2,6,24,120,720,4416,30744,230688,2001008,18030688,182144368,
%T 1950526752,22664810508,280110770684,3686769376452
%N Number of permutations of 0..n-1 with all sums of 5 adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 02 2008