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%I #7 Oct 30 2020 14:38:50
%S 1,1,2,6,24,120,720,2400,5424,11568,26796,68966,198332,558032,1509568,
%T 3898288,9694608,23885448,59953920,152383072,389677200,996510496
%N Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 5 of its minimum.
%Y Diagonal of A263752.
%K nonn
%O 0,3
%A _R. H. Hardin_, Oct 25 2015
%E a(0)=1, a(21) from _Alois P. Heinz_, Oct 29 2020
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