A147892 - OEIS

A147892

Number of permutations of floor(i*3/2), i=0..n-1, with all sums of two and three adjacent terms respectively unique.

%I #5 Apr 07 2021 19:25:36

%S 1,2,6,16,74,368,1776,9624,57916,365502,2682244,20315800,175739338,

%T 1565766116,15452316746,156617881640

%N Number of permutations of floor(i*3/2), 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