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A265444 Number of nX5 0..n+5-2 arrays with upper left zero and lower right n+5-2 and each element differing from its horizontal and vertical neighbors by one or two. 1

%I #4 Dec 09 2015 09:02:14

%S 9,455,25069,744805,41855199,4188662714,268477963202,11139856018641,

%T 436718915555930,28503014136448930,2155806263833599027,

%U 126581200884579064364,5999724385865167170433,301744936468780559629407

%N Number of nX5 0..n+5-2 arrays with upper left zero and lower right n+5-2 and each element differing from its horizontal and vertical neighbors by one or two.

%C Column 5 of A265447.

%H R. H. Hardin, <a href="/A265444/b265444.txt">Table of n, a(n) for n = 1..132</a>

%e Some solutions for n=3

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

%e ..2..3..2..3..4....2..3..1..3..4....1..3..1..3..5....1..2..4..3..4

%e ..0..1..3..4..6....3..1..3..4..6....2..4..2..4..6....3..4..3..5..6

%Y Cf. A265447.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2015

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)