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!)
A237699 Number of (n+1)X(4+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
4700, 39236, 333508, 3004030, 26578184, 236841050, 2109752772, 18967505282, 169027123272, 1509396722124, 13489906100708, 120997556161304, 1080200848895788, 9651096798463826, 86312065065972436, 773073801408693908 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237703

LINKS

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

EXAMPLE

Some solutions for n=2

..2..1..1..0..2....0..0..1..1..2....2..1..0..1..1....0..1..0..1..0

..1..0..1..0..1....0..2..0..2..0....1..1..1..0..1....2..0..1..1..2

..0..2..1..1..0....0..1..1..2..2....1..0..0..0..1....2..0..2..1..2

CROSSREFS

Sequence in context: A114542 A114568 A251135 * A235022 A223246 A330836

Adjacent sequences:  A237696 A237697 A237698 * A237700 A237701 A237702

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 25 19:00 EST 2022. Contains 350572 sequences. (Running on oeis4.)