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A264242 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2. 1

%I

%S 460,18725,1249237,70618408,4157973485,240749059561,13986284450284,

%T 810930428170425,47028506583536421,2726616972676156520,

%U 158083357026166112653,9164964468822776929689,531340576206742265022860

%N Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.

%C Column 6 of A264244.

%H R. H. Hardin, <a href="/A264242/b264242.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..2..4..9.10..5..6....1..7..8..3..4..6.12....1..3..2..9..6..5.12

%e ..7..8..1.16..3.13.19....9..0.10..2.13.18..5....8..0.15.16.11..4.13

%e .14.15.17.18.20.11.12...14.15.16.17.19.11.20...14..7.18.17.10.19.20

%Y Cf. A264244.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 09 2015

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Last modified July 30 07:41 EDT 2021. Contains 346348 sequences. (Running on oeis4.)