login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A237919 Number of (n+1) X (5+1) 0..3 arrays with the upper median plus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. 1
406468, 12149024, 405401852, 14163256928, 488835819834, 16925434187136, 590192559141494, 20435454685816288, 714496961639809210, 24788891407048570312, 867098385461953895482, 30089142655310004742832 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A237921.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for n=1:

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

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

CROSSREFS

Sequence in context: A252626 A237510 A234375 * A210265 A043609 A220988

Adjacent sequences:  A237916 A237917 A237918 * A237920 A237921 A237922

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 28 04:43 EDT 2021. Contains 348313 sequences. (Running on oeis4.)