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A239994 Number of n X n 0..3 arrays with no element equal to one 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 0
2, 13, 190, 6527, 635873, 191691132, 182333502325 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A240000
LINKS
EXAMPLE
Some solutions for n=4
..3..3..0..0....0..3..3..0....0..3..3..0....3..3..0..0....3..3..0..0
..0..3..3..0....3..2..3..3....0..0..3..1....0..3..1..3....0..2..1..3
..3..2..0..1....0..2..2..0....0..0..2..0....0..3..2..0....0..2..1..2
..3..1..0..2....2..2..0..0....3..3..0..0....0..0..2..2....0..2..2..0
CROSSREFS
Sequence in context: A062156 A371318 A323209 * A242007 A049512 A003507
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)