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A241285
Number of 3Xn 0..3 arrays with no element equal to one 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
10, 9, 41, 126, 224, 934, 2741, 5225, 20537, 55667, 113588, 422541, 1125360, 2473769, 8840311, 23068806, 53641026, 184488860, 476641936, 1157699906, 3848451987, 9887622772, 24862454468, 80220253420, 205811182949, 531847795781
OFFSET
1,1
COMMENTS
Row 3 of A241283
LINKS
EXAMPLE
Some solutions for n=4
..3..3..2..2....3..3..2..3....3..3..2..3....3..2..3..3....3..3..2..3
..2..1..1..0....2..1..3..0....2..1..3..0....2..1..1..2....2..1..1..2
..2..2..0..0....3..1..3..2....3..1..0..0....2..0..2..2....3..2..0..3
CROSSREFS
Sequence in context: A271973 A237114 A217412 * A052196 A243035 A070252
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2014
STATUS
approved