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A253543 Number of (n+2) X (7+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nonincreasing horizontally and nondecreasing vertically. 1
21426176, 1834356992, 127181862144, 9486518960384, 657894258934784, 46413538389140480, 3255970677691466752, 228600648438966641408, 15996469972150317342720, 1120603001060312615144960 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A253544.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..33

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

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

CROSSREFS

Cf. A253544.

Sequence in context: A034613 A253870 A253877 * A334372 A250912 A251998

Adjacent sequences:  A253540 A253541 A253542 * A253544 A253545 A253546

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 03 2015

STATUS

approved

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Last modified September 26 23:44 EDT 2022. Contains 357051 sequences. (Running on oeis4.)