A258908 - OEIS

A258908

Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically

914112, 14722533, 279149887, 5661517795, 100897843080, 1832394625108, 33594417416223, 594433786098630, 10434404156623917, 182812784117521839, 3173210306713443134, 54680520979784891870

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OFFSET

1,1

COMMENTS

Column 6 of A258910

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Cf. A258910

Sequence in context: A273356 A253991 A253998 * A259012 A259005 A256903

Adjacent sequences: A258905 A258906 A258907 * A258909 A258910 A258911

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 14 2015

STATUS

approved