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A186015 1/8192 the number of (n+2) X 7 0..3 arrays with no 3 X 3 subblock trace equal to any horizontal or vertical neighbor 3 X 3 subblock trace. 1
294396948, 1574001377834, 8896022678225044, 50262815203472669902, 283178106619218127407323, 1595416034937751138022369826, 8989089860728323984726287971908, 50647264481612304867053099566842986 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A186019.
LINKS
EXAMPLE
Some solutions for 4 X 7
..2..0..2..2..1..0..2....2..0..2..0..1..0..3....2..0..2..3..1..0..3
..0..0..0..0..1..2..1....0..0..0..0..0..1..3....0..0..0..0..2..2..1
..0..0..0..0..0..2..0....0..0..0..0..0..1..1....0..0..0..0..0..2..0
..0..0..0..1..0..2..1....0..0..0..1..0..2..0....0..0..0..1..0..2..0
CROSSREFS
Cf. A186019.
Sequence in context: A112452 A291459 A034640 * A183800 A289908 A182990
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 10 2011
STATUS
approved

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Last modified February 29 23:21 EST 2024. Contains 370428 sequences. (Running on oeis4.)