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!)
A306169 Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
8, 53, 66, 249, 832, 1956, 5421, 15993, 42682, 118773, 341634, 940420, 2616566, 7413719, 20635659, 57534784, 161865923, 452342333, 1263392559, 3543306258, 9914165346, 27719300656, 77641186448, 217307212078, 607908389285 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A306172.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A306172.

Sequence in context: A305344 A316612 A304666 * A316424 A317426 A212754

Adjacent sequences:  A306166 A306167 A306168 * A306170 A306171 A306172

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 23 2018

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 January 22 05:19 EST 2022. Contains 350481 sequences. (Running on oeis4.)