%I #6 Nov 10 2015 11:56:49
%S 8,296,5055,119737,2982248,70618408,1687935233,40609607317,
%T 977437302120,23543636508608,566962401161491,13652518078761425,
%U 328797608381693744,7918949594113662640,190724207496147466785,4593488047652485016169
%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.
%C Row 4 of A264244.
%H R. H. Hardin, <a href="/A264248/b264248.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..3..6..7..4....0..1..6..3..4....0..2..3..4..8....1..5..3..7..4
%e ..5..8..1..2..9....7.10.11..2..9....5..7..1.12..9....6..0..8..2..9
%e .11.13.16.17.14...12..5.13.14..8...11.13..6.17.14...10.11.16.14.18
%e .15.10.21.12.19...15.20.17.22.19...15.10.19.22.23...17.20.19.12.13
%e .20.22.24.23.18...21.23.16.24.18...20.21.16.24.18...21.15.22.23.24
%Y Cf. A264244.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 09 2015
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