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Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 4 adjacent terms unique.
0

%I #5 Apr 07 2021 20:12:00

%S 1,2,6,24,120,608,3684,23136,185772,1557704,14531768,142953580,

%T 1530728460,17401543208,210735290068,2698171998814

%N Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 4 adjacent terms unique.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 02 2008