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A204317
Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..3 introduced in row major order
1
15309, 599534, 24722349, 610123426, 19542294660, 640219515512, 19024434539826, 592133292151157, 18539942968489618, 569964486551172499, 17666458819729503194, 548346787225315800306, 16961895993823798307356
OFFSET
1,1
COMMENTS
Column 2 of A204320
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2..2....0..0..0..1....0..0..1..1....0..1..0..0....0..0..0..0
..1..0..0..0....0..0..0..1....1..1..0..1....1..1..0..0....1..0..1..2
..0..0..0..0....2..3..0..0....1..1..1..1....0..0..0..1....1..0..3..0
..0..1..0..0....0..3..0..0....0..2..1..1....0..0..0..0....0..0..0..0
..0..0..3..0....1..3..0..1....2..3..1..1....0..0..2..1....3..3..3..3
CROSSREFS
Sequence in context: A233595 A233594 A064982 * A216945 A258572 A352477
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 14 2012
STATUS
approved