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A258536 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
5646340, 22067757, 35610562, 161983800, 376000912, 1541134768, 6279181504, 21535095297, 90306754594, 358767653132, 1495562902148, 6433631827611, 28698011792056, 130108262711075, 602349588274042, 2818005642546966 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A258530

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

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

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

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

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

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

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

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

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

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

CROSSREFS

Cf. A258530

Sequence in context: A210163 A114685 A234174 * A258529 A254921 A290162

Adjacent sequences:  A258533 A258534 A258535 * A258537 A258538 A258539

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 02 2015

STATUS

approved

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Last modified May 6 09:25 EDT 2021. Contains 343580 sequences. (Running on oeis4.)