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A264198 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 2,1. 1

%I

%S 8,360,19845,395280,10764800,324210304,9863496016,279809075700,

%T 8157568320000,238979576637900,7001055126046864,204177934975626752,

%U 5968556502961102848,174493143469741118400,5100928646184033070545

%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 2,1.

%C Row 4 of A264195.

%H R. H. Hardin, <a href="/A264198/b264198.txt">Table of n, a(n) for n = 1..89</a>

%e Some solutions for n=3

%e ..2..3..0..1....2..3..0..1....9..3..0..1....2..3..0..1....9..1..0..3

%e ..6..5.15..7...13..7.15..5....6..5.15..7...13..5.15..7...13..7..4..5

%e .17..9.10.11...10.11.19..9...17.11.10..2....8.11.10..9...10.11..8..2

%e .14..4.12.13...14..4.12..6...14..4.12.13...14..4.12..6...14.15.12..6

%e .18..8.16.19...16..8.18.17...18..8.16.19...16.17.18.19...16.17.18.19

%Y Cf. A264195.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 07 2015

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Last modified August 16 15:30 EDT 2022. Contains 356168 sequences. (Running on oeis4.)