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A239860
Number of 3Xn 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
1
4, 5, 44, 78, 255, 742, 1382, 5647, 14755, 33946, 120389, 305123, 717503, 2451925, 6276842, 15461619, 51283453, 130329061, 331984698, 1067700153, 2718467454, 7099921104, 22241389875, 56803646347, 151320850227, 463374925294
OFFSET
1,1
COMMENTS
Row 3 of A239858
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3..2....3..2..3..2....3..2..3..2....3..2..3..3....3..2..3..3
..2..1..1..3....2..1..1..3....2..1..2..3....2..1..2..2....2..1..2..2
..2..1..2..3....3..1..3..2....3..2..2..2....3..0..2..3....2..0..0..3
CROSSREFS
Sequence in context: A256290 A041037 A041038 * A151486 A042383 A135799
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2014
STATUS
approved