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Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
1

%I #4 Nov 17 2015 09:30:37

%S 1,49,229,1424,13144,82961,634896,4694020,32872021,244392537,

%T 1765292857,12747481387,93145148713,673978017460,4893625572761,

%U 35569184047850,257943895485308,1873372187763379,13601305147581957,98717584859718118

%N Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.

%C Row 5 of A264534.

%H R. H. Hardin, <a href="/A264538/b264538.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..5..6..7..8..3...12..6..1..2..3....5..6.14..2..9...12..0..1..8..9

%e ..0..1..2.13..4....0.18.19..7..4....0..1.19..3..4...17.11..2..3..4

%e .15.16.24.12..9....5.10.11..8..9...22.10..7..8.13....5..6..7.18.19

%e .10.11.29.17.14...27.15.22.13.14...27.11.12.17.24...10.28.29.13.14

%e .25.26.27.18.19...25.16.17.28.29...15.16.21.18.29...15.16.21.22.23

%e .20.21.22.23.28...20.21.26.23.24...20.25.26.23.28...20.25.26.27.24

%Y Cf. A264534.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 17 2015