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%I #5 Apr 07 2021 19:19:13
%S 1,2,6,16,96,376,1924,10496,84546,522100,3532332,28645680,292372132,
%T 2430262092,21376627926,227599952694
%N Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 17 2008
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