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Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.
0

%I #5 Apr 07 2021 19:22:58

%S 1,2,6,16,54,232,936,3880,23002,127008,720116,4318818,26024362,

%T 158973744,1022131470,6808137758

%N Number of permutations of floor(i*9/8), 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