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A207555 Number of 7Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 1
1791, 3207681, 3323115736, 3168082336959, 3054158366460488, 2964756265273648883, 2876868686935789680075, 2790347210410991592878863, 2705587415313932036439553600, 2623332913249978851468865268215 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A207550

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..28

EXAMPLE

Some solutions for n=4

..0..2..2..1....2..1..0..2....0..2..2..2....0..1..1..2....0..2..0..2

..1..2..2..1....1..2..2..1....1..1..0..2....0..1..0..1....2..2..0..2

..0..0..1..1....1..0..1..1....0..0..1..0....2..2..0..0....2..0..1..0

..2..1..1..0....0..0..2..0....1..2..0..2....0..2..2..0....0..2..1..0

..1..0..0..1....0..2..0..0....1..0..2..0....0..1..0..1....2..1..2..1

..1..2..0..0....0..1..0..0....1..0..0..0....1..2..0..0....2..2..1..0

..2..2..1..2....1..2..0..0....2..1..0..0....1..2..2..2....0..2..2..2

CROSSREFS

Sequence in context: A235927 A090232 A153837 * A207549 A207316 A206699

Adjacent sequences:  A207552 A207553 A207554 * A207556 A207557 A207558

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified November 29 07:44 EST 2020. Contains 338756 sequences. (Running on oeis4.)