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A239985
Number of nX7 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4
0
1, 8, 107, 4059, 131242, 4803152, 226886115, 9004871354, 404795616742, 19130966325023
OFFSET
1,2
COMMENTS
Column 7 of A239986
EXAMPLE
Some solutions for n=3
..3..0..0..0..0..0..0....3..0..0..0..0..0..0....3..0..0..0..0..0..0
..3..1..3..0..0..0..0....2..3..0..0..3..3..0....2..3..0..0..3..3..0
..3..2..2..1..3..0..0....2..0..0..3..3..3..1....2..0..0..3..0..3..3
CROSSREFS
Sequence in context: A199658 A027013 A365818 * A274892 A105261 A187288
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved