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A264488 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.

%I A264488 #6 Nov 14 2015 16:52:07
%S A264488 1,35,324,4772,217049,2517024,89130069,1749889912,47485981944,
%T A264488 1036062520569,27578007781836,620722292448311,15966382007038680,
%U A264488 373437492628645406,9348490299717806516,222809815180956245674
%N A264488 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.
%C A264488 Column 5 of A264490.
%H A264488 R. H. Hardin, <a href="/A264488/b264488.txt">Table of n, a(n) for n = 1..22</a>
%e A264488 Some solutions for n=4
%e A264488 ..6..7..3..9..5.11....6..7..8.17.10.11....6..7..8..9.10.11....6..7..8..9.10.11
%e A264488 .12..1..2.15..4.17...12.13..9..3..4..5....0..1.14..3.16..5...12..1..2..3..4..5
%e A264488 .18..0..8.21.10.23...26..0..1..2.22.23...18.19.20..2.22..4...18..0.20.21.22.23
%e A264488 .24.13.26.27.28.29...24.25.21.27.28.29...24.25.26.27.28.29...24.13.26.15.28.29
%e A264488 .25.19.20.14.22.16...18.19.20.14.15.16...13.12.15.21.17.23...25.19.27.14.17.16
%Y A264488 Cf. A264490.
%K A264488 nonn
%O A264488 1,2
%A A264488 _R. H. Hardin_, Nov 14 2015