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!)
A305366 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. 1
8, 928, 2935, 21691, 163682, 1113793, 8803975, 65762626, 500606134, 3871912412, 29641292709, 228724010089, 1764555059811, 13604894698893, 105055149573703, 810888251301564, 6260188499559851, 48338915060171029, 373223482079535759 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305367.

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

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

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

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

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

CROSSREFS

Cf. A305367.

Sequence in context: A189646 A348795 A304018 * A304958 A316640 A304696

Adjacent sequences:  A305363 A305364 A305365 * A305367 A305368 A305369

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 31 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 November 28 13:04 EST 2021. Contains 349408 sequences. (Running on oeis4.)