A254810 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

2201616, 5237645, 12325478, 33038951, 91512698, 238103801, 434785178, 1088826673, 3089894442, 8868325562, 25015224842, 68790853067, 193737960982, 539777647627, 1550563296566, 4305193215622, 11937331297902, 32765831702614

Offset

1,1

Comments

Row 7 of A254804

Links

R. H. Hardin, Table of n, a(n) for n = 1..53

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

Crossrefs

Sequence in context: A251342 A019289 A254803 * A253819 A307963 A172802

Adjacent sequences: A254807 A254808 A254809 * A254811 A254812 A254813

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved