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A241279
Number of n X 3 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of 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.
1
4, 5, 41, 236, 1615, 12356, 96171, 761754, 6079503, 48655224, 389953075, 3127470262, 25091008666, 201333623389, 1615666305519, 12966002651979, 104056784269403, 835102517412497, 6702114259119338, 53787979810054439
OFFSET
1,1
COMMENTS
Column 3 of A241283.
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3....3..2..3....3..2..3....3..2..3....3..3..2....3..2..3....3..2..3
..2..1..2....2..1..2....2..1..2....2..1..2....2..1..3....0..3..2....0..3..2
..2..2..0....0..0..2....0..0..0....2..2..0....3..1..2....0..2..0....0..2..2
..0..2..0....2..0..0....0..2..2....0..0..3....2..2..2....0..0..0....0..0..0
CROSSREFS
Cf. A241283.
Sequence in context: A271285 A223528 A189744 * A245696 A317139 A123304
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2014
STATUS
approved