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A254559 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
1964388, 4537801, 10616893, 27729322, 59711718, 159929222, 479026957, 1334951110, 3821527067, 10456814300, 27133126461, 69996188662, 182153903591, 475965650328, 1260109188309, 3363690275867, 9040436176049, 24437292600358 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A254553

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..203

EXAMPLE

Some solutions for n=1

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A251961 A067454 A254552 * A254482 A219434 A345626

Adjacent sequences:  A254556 A254557 A254558 * A254560 A254561 A254562

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2015

STATUS

approved

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Last modified July 30 23:12 EDT 2021. Contains 346365 sequences. (Running on oeis4.)