A254591 Number of (6+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

1451174, 20636376, 305579066, 5184793937, 96984109170, 1782085332862, 31939816150372, 565834160597796, 9930766576561764, 172982219136880212, 2998344674413835672, 51805475835704207966, 893177057042248828654

Offset

1,1

Comments

Row 6 of A254586

Links

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

Example

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

Crossrefs

Sequence in context: A186533 A224974 A254584 * A254359 A184789 A003939

Adjacent sequences: A254588 A254589 A254590 * A254592 A254593 A254594

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved