login
Number of nX5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two.
1

%I #4 Dec 10 2015 07:52:33

%S 16,38791,82725668,376251416588,2435259956770588,8708917835881798394,

%T 58802183503095342593222,347784102836556460005206628,

%U 2647737477724849459980565778742,18435947350824077569591465827894795

%N Number of nX5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two.

%C Column 5 of A265590.

%H R. H. Hardin, <a href="/A265588/b265588.txt">Table of n, a(n) for n = 1..23</a>

%e Some solutions for n=2

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

%e ..0..4..3..7..9....5..1..5..7..9....2..4..2..1..9....3..5..6..5..9

%Y Cf. A265590.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 10 2015