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A186017
1/8192 the number of (n+2)X9 0..3 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace
0
894236244300, 47395262542477394, 2734847204224388546080, 157181851464796372886688987, 8989089860728323984726287971908, 514793257893476138400848117467563609
OFFSET
1,1
COMMENTS
Column 7 of A186019
EXAMPLE
Some solutions for 4X9
..2..0..2..0..2..0..0..0..0....2..0..2..0..2..2..3..1..2
..0..0..0..0..0..0..0..3..0....0..0..0..0..0..0..0..3..2
..0..0..0..0..0..0..0..0..3....0..0..0..0..0..0..0..2..2
..0..0..0..1..0..2..0..2..1....0..0..0..1..0..2..0..2..2
CROSSREFS
Sequence in context: A233487 A297354 A172798 * A015433 A234195 A297356
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 10 2011
STATUS
approved