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%I #5 Apr 07 2021 20:01:23
%S 1,2,6,24,120,720,5040,37440,303912,2690304,25901984,269965600,
%T 3126293480,38002845800,508011792988,7128791775500
%N Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 6 adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 02 2008