%I A147943
%S A147943 1,2,6,24,74,312,1620,7876,41114,262142,1532832,9946476,74352024,
%T A147943 512825612,3896130434,33601759994
%N A147943 Number of permutations of floor(i*4/3), i=0..n-1, with all sums of 2 
               through 5 adjacent terms respectively unique.
%Y A147943 Sequence in context: A096259 A087645 A107761 this_sequence A147934 A147925 
               A147917
%Y A147943 Adjacent sequences: A147940 A147941 A147942 this_sequence A147944 A147945 
               A147946
%K A147943 nonn
%O A147943 1,2
%A A147943 Ron Hardin (rhhardin(AT)att.net) Nov 17 2008