%I #5 Apr 07 2021 20:10:30
%S 1,2,6,24,120,608,3684,26640,192228,1659048,14739946,146975590,
%T 1544407392,17545685816,223201723716,2939542170692
%N Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 4 adjacent terms unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 02 2008