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%I #5 Apr 07 2021 19:20:55
%S 1,2,6,16,96,376,1924,10496,84546,512596,3408402,27126934,264217136,
%T 2142601474,18260309986,185609885490
%N Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 17 2008