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A240420
Number of nX4 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4
1
31, 553, 7857, 97269, 1197511, 14516959, 182716785, 2283795777, 29455167803, 375686161591, 4901784033237, 63140564981693, 827270124725239, 10706403464237323, 140419032613955165, 1821674119289634819
OFFSET
1,1
COMMENTS
Column 4 of A240422
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0....0..0..0..3....0..1..1..1....0..0..0..0....0..0..0..0
..1..0..1..1....0..3..3..3....0..1..0..1....1..1..3..1....0..0..0..3
..0..0..0..1....3..0..0..2....0..1..0..1....1..2..0..0....3..3..1..3
..1..1..1..3....0..0..0..3....1..0..0..2....3..2..0..0....0..3..0..2
CROSSREFS
Sequence in context: A038395 A261620 A196492 * A022755 A003533 A360761
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved