cp's OEIS Frontend

A263743 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and equal numbers of elements moved upwards and downwards.

%I A263743 #6 Jul 30 2018 20:28:43
%S A263743 1,2,4,14,46,282,1394,12658,68834,535262,2657220,17475120,85950104,
%T A263743 527877048,2718408447,16862137915,91926451748,573370470804,
%U A263743 3205404296496,19797261171758,111841627799232,680889785121642,3871436713513634
%N A263743 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and equal numbers of elements moved upwards and downwards.
%H A263743 R. H. Hardin, <a href="/A263743/b263743.txt">Table of n, a(n) for n = 1..45</a>
%e A263743 Some solutions for n=7
%e A263743 ..0....2....4....4....5....4....1....5....1....2....4....6....0....4....0....5
%e A263743 ..4....1....1....3....1....5....5....4....0....4....1....3....5....3....1....1
%e A263743 ..1....5....6....5....4....6....2....1....2....6....0....2....6....2....2....4
%e A263743 ..2....6....5....0....0....3....6....3....6....3....5....5....4....0....3....2
%e A263743 ..5....3....3....2....3....1....0....6....5....1....6....0....3....1....5....6
%e A263743 ..6....0....2....1....6....0....4....0....4....0....3....4....1....6....4....0
%e A263743 ..3....4....0....6....2....2....3....2....3....5....2....1....2....5....6....3
%Y A263743 Column 7 of A263744.
%K A263743 nonn
%O A263743 1,2
%A A263743 _R. H. Hardin_, Oct 25 2015