cp's OEIS Frontend

A263742 Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and equal numbers of elements moved upwards and downwards.

%I A263742 #6 Jul 23 2025 15:36:43
%S A263742 1,2,4,14,46,282,1394,10090,44914,266476,1144246,6123066,27514165,
%T A263742 148657877,712133826,3868859444,19001179140,101945373036,505520499480,
%U A263742 2672357669178,13361279040764,70132283967884,354087976208204
%N A263742 Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and equal numbers of elements moved upwards and downwards.
%C A263742 Column 6 of A263744
%H A263742 R. H. Hardin, <a href="/A263742/b263742.txt">Table of n, a(n) for n = 1..96</a>
%e A263742 Some solutions for n=7
%e A263742 ..4....5....3....3....5....5....4....5....0....4....1....0....5....3....4....0
%e A263742 ..0....1....0....0....3....2....6....2....3....1....0....6....4....4....1....4
%e A263742 ..5....6....6....5....0....1....2....0....6....5....2....5....3....0....2....6
%e A263742 ..3....4....5....4....2....4....5....4....2....6....5....4....1....6....3....1
%e A263742 ..6....0....4....2....4....3....3....1....5....0....6....1....0....1....0....5
%e A263742 ..1....2....1....1....6....0....0....3....1....2....3....3....2....5....6....3
%e A263742 ..2....3....2....6....1....6....1....6....4....3....4....2....6....2....5....2
%Y A263742 Cf. A263744
%K A263742 nonn
%O A263742 1,2
%A A263742 _R. H. Hardin_, Oct 25 2015