A152384 - OEIS

%I #5 Apr 07 2021 20:00:29

%S 1,2,6,24,120,720,5040,37248,319512,2918016,29152160,314633376,

%T 3963157656,50343312444,685581994146,10100992141840

%N Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 6 adjacent terms unique.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 02 2008