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A239850 Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4 0

%I

%S 2,3,44,203,4549,176208,9885999,14757679494

%N Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4

%C Diagonal of A239858

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 28 2014

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)