login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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 1
310, 1524, 7562, 39236, 201754, 1033140, 5302002, 27377802, 140907656, 723464076, 3719653604, 19172131806, 98659238520, 507065229134, 2608372320890, 13432072024666, 69112775082390, 355397881712346, 1828490598631476 (list; graph; refs; listen; history; text; internal format)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)