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A240399 Number of 7Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4 1
8, 1184, 48826, 1314136, 27938412, 502139307, 8505203924, 129986039476, 1866231371425, 25064986328911, 321447302724210, 3937428233396558, 46182406835583776, 518522310991918951, 5587970755536084736 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A240394
LINKS
EXAMPLE
Some solutions for n=4
..3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0
..3..2..0..0....1..0..0..0....3..2..0..0....1..0..0..0....3..0..0..0
..1..2..0..0....3..0..0..0....1..0..0..0....3..2..0..0....1..2..0..0
..3..2..0..0....1..2..2..0....1..2..0..0....3..0..2..0....1..0..2..0
..1..0..2..2....3..0..2..2....3..2..3..2....1..0..2..2....3..0..0..0
..1..0..2..1....3..0..0..2....3..2..2..1....1..0..2..2....3..2..2..2
..3..0..0..1....1..2..0..2....1..0..0..2....3..1..2..0....1..2..2..0
CROSSREFS
Sequence in context: A201985 A301614 A180767 * A160008 A251699 A162139
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved

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Last modified April 22 18:29 EDT 2024. Contains 371906 sequences. (Running on oeis4.)