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!)
A251281 Number of (n+1)X(6+1) 0..3 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element 1
131421696, 1071238805248, 8731180080790272, 71150650646356529216, 579798390712632340647936, 4724687679127024503784365440, 38500708396868195909229905732096, 313735908205564473863325105791912960 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A251283

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A059092 A147715 A251400 * A011577 A186573 A186574

Adjacent sequences: A251278 A251279 A251280 * A251282 A251283 A251284

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 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 February 9 01:59 EST 2023. Contains 360153 sequences. (Running on oeis4.)