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!)
A239173 Number of (n+1)X(3+1) 0..2 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors 1
98, 514, 9604, 130890, 1876940, 26726740, 381984614, 5442841504, 77654661978, 1107987680604, 15802237635146, 225425167338190, 3215775310811444, 45870835552152286, 654345984389717822, 9334191267457643510 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A239178

LINKS

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

R. H. Hardin, Empirical recurrence of order 67

FORMULA

Empirical recurrence of order 67 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A071319 A263040 A263033 * A233928 A233921 A203083

Adjacent sequences:  A239170 A239171 A239172 * A239174 A239175 A239176

KEYWORD

nonn

AUTHOR

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 4 20:49 EDT 2022. Contains 355086 sequences. (Running on oeis4.)