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A258516 Number of (6+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
827673, 8659189, 147424970, 1980067182, 25984470984, 369487230074, 5214669067797, 72240184928210, 1005871695814769, 14059183373760879, 196129857945903020, 2734141525611294566, 38135102335776319735 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A258511

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..54

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

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

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

CROSSREFS

Cf. A258511

Sequence in context: A112428 A182532 A293291 * A258509 A254996 A083618

Adjacent sequences:  A258513 A258514 A258515 * A258517 A258518 A258519

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 01 2015

STATUS

approved

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Last modified May 12 02:06 EDT 2021. Contains 343808 sequences. (Running on oeis4.)