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%I #6 Nov 11 2015 08:03:30
%S 61,944,51825,1346944,53407877,1659712320,59343473405,1955070027088,
%T 67490110411793,2266016041549488,77301460609942557,
%U 2611942953465635824,88737349845940685049,3004808214662968371840,101938805574695816594665
%N Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change 0,1 0,-2 1,0 or -1,0.
%C Column 7 of A264299.
%H R. H. Hardin, <a href="/A264306/b264306.txt">Table of n, a(n) for n = 1..78</a>
%e Some solutions for n=3
%e ..8..0..1..2..3.13..5..6....8..9..4..5..3..7.14.15....2..0..4.11.12..7..5..6
%e .16.11.18.10..4.15.22..7....0..1..2.10.11.12..6.23...10..1..9..3.20.15.22.23
%e .24..9.20.21.12.23.14.31...24.19.20.18.22.13.21.31....8.25.17.21.19.13.14.31
%e .26.17.25.19.27.28.29.30...16.17.25.26.27.28.29.30...16.24.18.26.27.28.29.30
%Y Cf. A264307.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 11 2015
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