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A265177 Number of n X 5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and vertical neighbors by a power of two. 1

%I

%S 16,8463,7796840,19256175024,62221755947285,29140746691543180,

%T 114300945033974982113,143026744640969922998778,

%U 665211626399246015524893315,1103575752619261180934292157487

%N Number of n X 5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and vertical neighbors by a power of two.

%C Column 5 of A265178.

%H R. H. Hardin, <a href="/A265177/b265177.txt">Table of n, a(n) for n = 1..13</a>

%e Some solutions for n=2

%e ..0..4..2..4..8....0..4..6..5..7....0..4..5..6..5....0..4..3..5..1

%e ..2..3..4..5..9....2..3..5..1..9....4..8..9..5..9....2..6..5..7..9

%Y Cf. A265178.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2015

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Last modified August 19 23:27 EDT 2022. Contains 356231 sequences. (Running on oeis4.)