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%I #5 Apr 07 2021 19:21:19
%S 1,2,6,24,74,312,1620,7876,44022,307314,2064562,15229866,132064084,
%T 1095500280,10006003984,104500649736
%N Number of permutations of floor(i*4/3), 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
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