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A239989
Number of 5Xn 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
7, 40, 261, 1391, 7113, 31226, 131242, 514539, 1914507, 6772946, 22897312, 74168162, 230889987, 691544987, 1994352403, 5541664374, 14851119427, 38433580993, 96194422578, 233234971795, 548761214881, 1255035407604
OFFSET
1,1
COMMENTS
Row 5 of A239986
FORMULA
Empirical polynomial of degree 24 (see link above)
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
..2..3..3....2..1..0....2..3..0....2..3..3....3..1..3....3..1..3....3..1..3
..2..0..0....2..0..0....2..0..1....2..0..0....2..1..0....3..1..3....2..1..2
..3..2..2....3..0..1....3..0..2....3..2..0....3..2..2....2..3..2....3..1..2
..2..1..0....3..1..2....2..3..0....3..1..2....2..1..0....2..0..0....3..2..2
CROSSREFS
Sequence in context: A051814 A154968 A121582 * A356459 A226223 A356046
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved