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A240369
Number of 6Xn 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 two plus the sum of the elements diagonally to its northwest, modulo 4
0
22, 571, 18307, 663122, 25831820, 1069763402, 46251359120, 2092454198295, 97243617514832, 4655473468942780, 225559938510544139
OFFSET
1,1
COMMENTS
Row 6 of A240364
EXAMPLE
Some solutions for n=3
..0..3..3....0..3..1....0..3..3....0..3..1....0..3..3....0..0..0....3..1..0
..0..3..3....0..3..2....3..3..2....0..0..2....0..0..2....0..3..1....0..0..0
..0..3..2....3..1..3....0..2..0....0..0..0....3..3..1....0..0..0....3..1..0
..0..0..0....0..3..2....3..1..0....0..3..3....0..2..2....3..3..0....3..3..0
..3..1..0....0..3..1....3..2..1....0..3..3....3..3..1....0..2..0....0..2..1
..3..2..1....3..1..0....0..3..2....3..1..2....3..3..2....0..0..0....0..3..1
CROSSREFS
Sequence in context: A239652 A223883 A223890 * A159875 A240337 A084271
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved