A237697 Number of (n+1)X(2+1) 0..2 arrays with the maximum plus the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

310, 1524, 7562, 39236, 201754, 1033140, 5302002, 27377802, 140907656, 723464076, 3719653604, 19172131806, 98659238520, 507065229134, 2608372320890, 13432072024666, 69112775082390, 355397881712346, 1828490598631476

Offset

1,1

Comments

Column 2 of A237703

Links

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

Example

Some solutions for n=4
..0..0..2....0..1..1....1..2..1....2..2..1....2..0..0....2..0..1....1..1..0
..1..2..0....0..1..0....2..1..0....2..1..2....0..1..1....1..0..1....0..0..2
..1..1..2....1..1..2....0..1..1....2..1..1....2..1..1....2..1..1....1..0..0
..1..0..1....0..2..1....2..2..1....1..0..1....2..0..2....0..2..1....0..1..0
..1..2..2....1..0..1....2..1..2....2..2..1....2..2..1....0..2..0....1..1..0

Crossrefs

Sequence in context: A304384 A206233 A254972 * A218103 A289304 A281568

Adjacent sequences: A237694 A237695 A237696 * A237698 A237699 A237700

Keyword

nonn

Author

R. H. Hardin, Feb 11 2014

Status

approved