login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A250919 Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element 0
58, 4148, 1320397, 1887760064, 11784958341212, 326142987792877076, 39794970725248251340754, 21426748780832973687500615661, 50928642492582508852724999569973939 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A250927

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A207474 A207530 A042625 * A282438 A308391 A128934

Adjacent sequences:  A250916 A250917 A250918 * A250920 A250921 A250922

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 28 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 November 11 22:31 EST 2019. Contains 329046 sequences. (Running on oeis4.)