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Number of n X n 0..3 arrays with no element equal to the sum modulo 4 of elements to its left or elements above it
0

%I #5 Dec 18 2015 18:18:48

%S 3,30,1888,604412,976810146,8524103612876,384784855475971422,

%T 91451636241199973001868,113848681754675491485349305798

%N Number of n X n 0..3 arrays with no element equal to the sum modulo 4 of elements to its left or elements above it

%C Diagonal of A238775

%e Some solutions for n=3

%e ..3..2..3....1..2..2....1..3..2....3..1..2....3..1..2....1..2..1....1..2..1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 05 2014