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!)
A293099 Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. 1
3, 2220, 205195, 24773296, 2728695681, 328979478088, 38469698642410, 4665971856266714, 560706154294046909, 68470475134869958112, 8347937003432022928553, 1025774531240519319091628 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A293100.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A293100.

Sequence in context: A145700 A286978 A293086 * A336910 A286715 A081176

Adjacent sequences:  A293096 A293097 A293098 * A293100 A293101 A293102

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 30 2017

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 May 25 22:51 EDT 2022. Contains 354073 sequences. (Running on oeis4.)