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A239039
Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4
0
3, 41, 2739, 996325, 1916936295, 19230047618078, 1009453455314170147, 277622934845789537083432, 399900776405405212831407783271
OFFSET
1,1
COMMENTS
Diagonal of A239047
EXAMPLE
Some solutions for n=3
..2..2..3....2..0..2....0..0..2....0..0..3....3..2..0....0..0..0....0..3..3
..2..2..2....2..0..0....3..2..0....3..3..2....3..2..3....0..0..2....2..2..2
..0..0..0....3..3..1....2..1..2....2..1..3....0..2..1....3..3..1....0..0..3
CROSSREFS
Sequence in context: A262644 A238990 A192888 * A228456 A238717 A057013
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 09 2014
STATUS
approved