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!)
A306165 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
64, 101, 523, 2966, 19176, 128710, 842280, 5553315, 36528087, 240890311, 1589377780, 10478113962, 69104073784, 455793498250, 3005985844063, 19825140803190, 130753850843144, 862362210105594, 5687526991833846 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A306166.

LINKS

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

EXAMPLE

Some solutions for n=5

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

..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0

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

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

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

CROSSREFS

Cf. A306166.

Sequence in context: A305339 A304925 A316419 * A317382 A331455 A039481

Adjacent sequences:  A306162 A306163 A306164 * A306166 A306167 A306168

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 October 26 20:42 EDT 2021. Contains 348269 sequences. (Running on oeis4.)