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A258514 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
44548, 304844, 3064020, 27571468, 236448598, 2068059998, 18083959576, 157163468106, 1364942021714, 11857342857128, 102996369948564, 894575792147394, 7769059549709068, 67464596272746618, 585836857861166455 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A258511

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

CROSSREFS

Cf. A258511

Sequence in context: A178553 A216203 A194355 * A258507 A254994 A295480

Adjacent sequences:  A258511 A258512 A258513 * A258515 A258516 A258517

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 01 2015

STATUS

approved

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Last modified May 6 16:20 EDT 2021. Contains 343586 sequences. (Running on oeis4.)