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A222775 Number of 7Xn 0..1 arrays with exactly floor(7Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
0, 512, 7575, 196185, 2645385, 79612578, 1139211468, 36347447930, 539406313075, 17697303249138, 268539430883934, 8952558217033179, 137856342447857961, 4642930013771229936, 72224464903123955127, 2449378469060543554130 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A222769

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A263034 A254012 A258518 * A257419 A255749 A251186

Adjacent sequences:  A222772 A222773 A222774 * A222776 A222777 A222778

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 05 2013

STATUS

approved

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Last modified July 20 14:01 EDT 2019. Contains 325181 sequences. (Running on oeis4.)