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!)
A237901 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
12441, 265306, 5825366, 130240640, 2894506130, 64281925312, 1428716811643, 31771479675504, 706435639166636, 15702067218875532, 349084196018350256, 7760362296695540800, 172539246416718638096, 3835413694548281288228 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A237904

LINKS

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

EXAMPLE

Some solutions for n=1

..1..2..2..2....0..1..2..0....3..2..3..1....1..3..2..3....3..1..0..1

..2..3..2..0....0..1..2..0....3..2..0..0....1..0..2..3....3..3..0..2

CROSSREFS

Sequence in context: A068676 A252613 A221016 * A234127 A272132 A206664

Adjacent sequences: A237898 A237899 A237900 * A237902 A237903 A237904

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 15 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 31 19:18 EDT 2023. Contains 361672 sequences. (Running on oeis4.)