A254589 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally

72939, 649029, 5852880, 58920922, 613720640, 6258245316, 62363902283, 612314070327, 5944180964639, 57211015018162, 547453527649167, 5218184143373255, 49605050962203855, 470705828047069026

Offset

1,1

Comments

Row 4 of A254586

Links

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

Example

Some solutions for n=1
..0..0..1....1..1..1....1..0..0....1..1..0....1..1..1....1..0..0....0..1..0
..0..0..0....0..0..0....1..1..1....1..0..1....0..0..1....0..0..0....1..0..0
..1..1..0....1..1..0....1..0..0....0..0..0....1..1..0....1..0..1....1..0..0
..0..1..1....1..1..1....0..1..0....1..1..1....1..1..1....1..0..1....0..0..0
..1..1..1....1..1..0....0..1..0....1..1..1....1..1..1....1..1..1....0..0..1
..0..0..1....0..1..1....1..0..0....0..0..1....1..0..1....0..0..0....1..1..0

Crossrefs

Sequence in context: A161730 A071145 A254582 * A254357 A031665 A247993

Adjacent sequences: A254586 A254587 A254588 * A254590 A254591 A254592

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved