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A240287
Number of 4Xn 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 zero plus the sum of the elements diagonally to its northwest, modulo 4
1
4, 38, 262, 3457, 28654, 443168, 3980245, 64782938, 596789376, 9869794598, 91652276224, 1523203607042, 14179800809674, 236017741338558, 2198821491143543, 36615754869208829, 341205510217305667
OFFSET
1,1
COMMENTS
Row 4 of A240284
LINKS
EXAMPLE
Some solutions for n=4
..3..3..1..3....3..1..3..3....3..1..3..3....3..1..3..1....3..1..3..1
..2..2..0..3....2..0..2..0....3..2..3..0....2..0..0..0....3..1..2..0
..2..0..2..2....2..0..0..2....2..2..2..2....2..0..2..0....3..1..2..1
..2..1..3..0....2..1..1..0....3..1..0..0....3..1..0..0....2..2..2..1
CROSSREFS
Sequence in context: A196851 A196702 A196945 * A092642 A020865 A240378
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved