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A252902
Number of (n+2)X(4+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order
1
139968, 3255537, 66702186, 1470299799, 31496378270, 686625400736, 14835814827267, 322576038239193, 6989657828455183, 151771815886853461, 3292236549500324844, 71456089714340948727, 1550469560563259849691
OFFSET
1,1
COMMENTS
Column 4 of A252904
LINKS
EXAMPLE
Some solutions for n=1
..0..1..1..2..1..1....0..0..1..1..2..1....0..1..1..2..2..0....0..1..1..0..0..2
..0..1..1..0..1..1....0..3..0..3..3..0....1..2..1..1..2..1....3..0..0..1..1..0
..2..3..2..2..3..2....3..3..1..1..3..1....1..1..0..1..0..0....0..0..1..0..1..0
CROSSREFS
Sequence in context: A179583 A252588 A360842 * A360843 A242143 A156409
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 24 2014
STATUS
approved