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!)
A295039 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s. 1
37, 2735, 104096, 4738235, 209181266, 9248214732, 411280569141, 18227207589288, 807975522778623, 35828949243544333, 1588724655137268304, 70444327993290622210, 3123514826860958239480, 138498446900583005504125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A295040.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A295040.

Sequence in context: A296738 A296385 A296642 * A295530 A174750 A183524

Adjacent sequences:  A295036 A295037 A295038 * A295040 A295041 A295042

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 12 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 4 03:57 EDT 2021. Contains 346442 sequences. (Running on oeis4.)