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%I #4 Nov 11 2015 07:45:36
%S 0,56,192,1672,25080,146688,1346944,13834555,104830640,937391448,
%T 8580314512,71419802456,629686664072,5565143259715,47786322624048,
%U 418580670492536,3662684910895709,31774718564557848,277532293674535584
%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 0,-2 1,0 or -1,0.
%C Row 4 of A264299.
%H R. H. Hardin, <a href="/A264303/b264303.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..5..3..4..2..9....5..0..1..2..3....5..6..7..8..3....5..0..4..2..3
%e ..0..1..6.13.14...10..8..9..7..4....0..1..2.13..4....7..1..6.13..8
%e .12.10..7..8.19...15..6.14.12.13...12.10.14.18..9...12.16.11.18..9
%e .20.11.22.17.24...20.11.19.17.24...17.11.16.23.24...10.21.19.17.14
%e .15.16.21.18.23...22.16.21.18.23...15.20.21.22.19...15.20.24.22.23
%Y Cf. A264299.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 11 2015
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