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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 0,0 0,1 1,0 or -1,-2.
1

%I #4 Nov 10 2015 14:59:20

%S 1,181,2324,29742,537057,8405669,131452948,2106493053,33373652045,

%T 527999350819,8361101819256,132229311039965,2089823448380709,

%U 33022907786733950,521708203665257621,8240560035947933736

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

%C Row 5 of A264285.

%H R. H. Hardin, <a href="/A264289/b264289.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..7..0..1..3..4....7..0..1..2..4....7..0..2..3..4....0..1..2..3..4

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

%e .10.18.11.12.14...10.11.19..8.14...10.11.19.12.14...17.10.11.12.14

%e .15.23.16.13.19...15.16.17.13.18...15.16.17.13.18...15.16.24.13.19

%e .27.21.17.22.24...27.20.21.23.24...20.21.29.22.24...27.20.22.18.23

%e .20.25.26.28.29...25.26.22.28.29...25.26.27.23.28...25.21.26.28.29

%Y Cf. A264285.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 10 2015