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!)
A196911 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,1,2,0,4 for x=0,1,2,3,4 1
13, 487, 10970, 280860, 7352954, 200038888, 5388703976, 145478400315, 3933296800409, 106294282176389, 2872553552092524, 77641656013643280, 2098667174973445583, 56728541446185446120, 1533438828790467176239 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 1's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 4's

Column 7 of A196912

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..121

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..1..1....0..0..1..1..0..0..1....0..0..0..0..0..0..0

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

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

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

CROSSREFS

Sequence in context: A220560 A033983 A055412 * A197078 A116114 A281181

Adjacent sequences:  A196908 A196909 A196910 * A196912 A196913 A196914

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 07 2011

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 23 17:37 EDT 2021. Contains 348215 sequences. (Running on oeis4.)