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A239991
Number of 7 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.
1
15, 208, 4113, 70107, 1174822, 16721012, 226886115, 2823199343, 33074332722, 366468588411, 3862531765288, 38827887664460, 374132975836928, 3462018008021025, 30769710869286232, 262533007814160639
OFFSET
1,1
COMMENTS
Row 7 of A239986.
LINKS
EXAMPLE
Some solutions for n=3:
..3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0
..3..1..3....3..1..3....3..1..3....2..1..0....2..3..0....2..3..0....3..1..3
..2..1..0....3..1..2....3..1..3....2..0..0....2..0..1....2..0..0....3..2..3
..3..2..2....2..3..2....2..3..3....3..0..0....2..0..0....3..2..0....2..3..3
..2..1..0....2..0..0....2..1..2....3..2..0....2..0..0....3..1..3....2..1..2
..2..1..0....2..0..0....2..1..2....2..3..3....3..2..2....2..3..3....2..0..3
..2..1..1....2..1..2....2..0..1....3..2..2....3..1..3....3..0..2....3..0..1
CROSSREFS
Sequence in context: A271333 A051813 A280160 * A274563 A122572 A028230
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved