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A186958
1/729 the number of (n+2)X7 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace
1
201495, 97400287, 22237406277, 6014794685157, 1557834542977401, 411931941306416847, 108124495560461502429, 28454687244738848695377, 7482086662398565239408367, 1967930140348277322040712515
OFFSET
1,1
COMMENTS
Column 5 of A186962
LINKS
EXAMPLE
Some solutions for 4X7
..0..0..1..1..0..0..1....0..0..1..1..2..0..2....0..0..1..0..2..0..0
..0..0..0..2..2..2..1....0..0..0..1..1..0..0....0..0..0..1..2..2..2
..0..0..0..0..0..0..1....0..0..0..0..0..0..1....0..0..0..0..1..1..1
..0..0..0..0..0..0..0....0..0..0..0..0..1..2....0..0..0..0..0..1..2
CROSSREFS
Sequence in context: A179224 A237374 A202316 * A184406 A036319 A241060
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 01 2011
STATUS
approved