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A147907 Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique. 0

%I

%S 1,2,6,16,54,232,936,3880,23002,127008,751100,4670780,29781390,

%T 193211704,1334448490,9604883174

%N Number of permutations of floor(i*9/8), 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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Last modified January 19 02:30 EST 2022. Contains 350464 sequences. (Running on oeis4.)