A254299 - OEIS

A254299

Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically

512, 18098, 517934, 9867433, 201263574, 2586900868, 33988604549, 717415809480, 7290679926977, 138313192698115, 3670559003096241, 43244322834926311, 535368753213897321, 133183455081275743992, 1205154445446784431467

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OFFSET

1,1

COMMENTS

Diagonal of A254306

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A195657 A072369 A140251 * A283340 A321833 A351197

Adjacent sequences: A254296 A254297 A254298 * A254300 A254301 A254302

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2015

STATUS

approved