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A222696 Number of 7Xn 0..2 arrays with exactly floor(7Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
0, 5440, 159672, 11082863, 301760538, 27752564898, 832227066041, 83923543594779, 2708485928608316, 290028583892214392, 9899860627729886022 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A222690

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0

..1..0..1....0..1..0....0..1..1....0..0..1....0..0..1....0..0..0....0..0..0

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

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

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

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

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

CROSSREFS

Sequence in context: A211775 A116894 A124629 * A125016 A234157 A204474

Adjacent sequences:  A222693 A222694 A222695 * A222697 A222698 A222699

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 28 2013

STATUS

approved

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Last modified January 20 20:50 EST 2021. Contains 340332 sequences. (Running on oeis4.)