%I #5 Apr 07 2021 19:25:07
%S 1,2,6,16,74,304,1720,9344,67650,496204,4034008,33768568,337582870,
%T 3472186528,37790639750,425218900656
%N Number of permutations of floor(i*5/4), i=0..n-1, with all sums of two adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 17 2008
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