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

%I #5 Apr 07 2021 19:37:32

%S 1,2,6,24,96,444,2508,13216,81030,566512,4383340,43168552,356745786,

%T 3125719866,30567653042,349720370632

%N Number of permutations of floor(i*9/5), 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