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A254781 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and the central column and the two medians of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
2473062, 23633202, 462927268, 7597019270, 151619878261, 3258176834810, 66029963150922, 1342750776459233, 27898030834172634, 574451492960252732, 11798168038957851746, 242987369752309511703, 5004900124524544978144 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A254775

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..100

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A097968 A205025 A254774 * A254727 A230015 A180705

Adjacent sequences:  A254778 A254779 A254780 * A254782 A254783 A254784

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 07 2015

STATUS

approved

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Last modified December 9 06:07 EST 2021. Contains 349627 sequences. (Running on oeis4.)