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%I #3 Nov 11 2015 07:47:45
%S 0,441,4352,94320,3654505,66462504,1659712320,45752436553,
%T 1014943340640,25160568710560,635057168205273,15056010708049352,
%U 370239981042453456,9120915650958923337,220779580837062915520,5407745104882678660128
%N Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,1 0,-2 1,0 or -1,0.
%C Row 6 of A264299.
%e Some solutions for n=4
%e ..5..0..7..2..9....2..3..7..8..9....5..0..4..8..3....5..0..4..2..9
%e .10..1..6..3..4....0..1..6.13..4...10..1..2..7.14....7..1..6..3.14
%e .15.16.11..8.13....5.10.14.12.19...12..6.11.18..9...12.10.11..8.19
%e .17.21.12.23.14...20.11.16.17.24...20.21.16.13.24...20.21.22.13.24
%e .22.20.27.18.19...15.26.21.18.29...15.23.17.22.19...15.16.17.18.29
%e .30.31.32.33.24...27.28.22.23.34...30.25.29.27.34...27.28.26.23.34
%e .25.26.34.28.29...25.30.31.32.33...32.26.31.28.33...25.30.31.32.33
%Y Cf. A264299.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 11 2015
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