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A239994 Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4 0

%I #5 Dec 18 2015 18:18:50

%S 2,13,190,6527,635873,191691132,182333502325

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

%C Diagonal of A240000

%e Some solutions for n=4

%e ..3..3..0..0....0..3..3..0....0..3..3..0....3..3..0..0....3..3..0..0

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 30 2014

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)