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%I #4 Nov 17 2015 19:16:37
%S 3,32,224,4104,57265,1133040,16284544,273793368,4390726564,
%T 71355343752,1149012880464,18568212596576,299910893436736,
%U 4834871657973568,78019697845282880,1258480482181398560,20296382195740537248
%N Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 1,0 1,1 0,-1 or -1,1.
%C Row 6 of A264569.
%H R. H. Hardin, <a href="/A264574/b264574.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..2..6..4..8....1..2..6..4..8....1..5..6..7..8....1..5..3..4..8
%e ..0..7.11..9..3....0..7.11..9..3....0.10..2..3..4....0..7..2.12.13
%e ..5.15.16.14.18....5.12.16.14.18...11.15.13.14..9...11.15..6.14..9
%e .10.20.12.19.13...10.20.21.19.13...16.17.12.19.23...10.17.18.19.23
%e .21.25.17.27.28...15.25.17.24.28...21.25.26.27.18...21.16.26.27.28
%e .26.30.22.23.24...26.30.22.23.33...20.30.22.29.24...20.30.31.22.24
%e .31.32.33.34.29...31.32.27.34.29...31.32.33.34.28...25.32.33.34.29
%Y Cf. A264569.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 17 2015
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