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A204863
Number of (n+2)X6 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..1 introduced in row major order
1
5352, 31034, 192080, 1193734, 7620885, 48713811, 309173896, 1968871406, 12569403973, 79966055788, 509576759394, 3248460700788, 20690736697342, 131840896177319, 840189826426419, 5352962842116701, 34108714839068907
OFFSET
1,1
COMMENTS
Column 4 of A204867
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0..1..0....0..1..1..1..0..1....0..0..1..1..1..1....0..1..1..1..1..1
..1..0..0..1..0..0....0..1..1..0..1..1....1..1..1..1..0..0....1..0..1..0..1..1
..1..1..1..1..1..0....0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..1..1..0..0....0..1..1..0..0..1....1..0..0..1..1..0....1..1..1..1..1..1
..0..0..0..0..1..0....1..1..1..1..1..1....0..1..1..1..1..0....0..0..1..1..0..1
CROSSREFS
Sequence in context: A234213 A187435 A023939 * A259893 A206681 A203962
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2012
STATUS
approved