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%I #5 Apr 07 2021 19:18:02
%S 1,2,6,16,96,376,1924,10912,90032,563836,3920958,33396960,370390258,
%T 3235719046,30075123118,343158668698
%N Number of permutations of floor(i*9/4), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 17 2008