login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A304140 Number of nX7 0..1 arrays with every element unequal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero. 1
1, 99, 33, 25, 135, 34, 48, 785, 96, 164, 5607, 688, 1198, 43126, 7146, 13284, 344363, 85130, 174124, 2842665, 1101826, 2429578, 24588566, 15000202, 34580418, 227836525, 209686868, 495041722, 2307698343, 2968753906, 7098677686 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A304141.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304141.

Sequence in context: A113602 A097846 A246222 * A305046 A316732 A033419

Adjacent sequences:  A304137 A304138 A304139 * A304141 A304142 A304143

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 07 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 July 16 23:49 EDT 2019. Contains 325092 sequences. (Running on oeis4.)