A152353 - OEIS

A152353

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

%I #5 Apr 07 2021 20:15:16

%S 1,2,6,24,120,720,4608,33984,276288,2537184,25466944,279826088,

%T 3299556704,41853801224,573876216960,8325351884896

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 02 2008