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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A304701 Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1

%I

%S 3,51,46,215,908,5232,19701,135455,872954,4460213,28861276,182319313,

%T 1043954782,6559780616,40608072614,242771829978,1502847915709,

%U 9234685790042,56064025371157,344833181614977,2113754951173744

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 5 of A304704.

%H R. H. Hardin, <a href="/A304701/b304701.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..0..0..1..1. .0..1..0..1..1. .0..1..1..1..0. .0..1..1..0..1

%e ..1..1..0..0..0. .0..0..0..0..0. .0..1..1..0..1. .0..1..1..1..0

%e ..1..1..1..1..1. .0..0..1..1..1. .0..0..0..0..0. .0..0..0..0..0

%e ..0..0..0..1..1. .0..1..0..0..0. .0..1..1..1..0. .1..0..1..1..0

%e ..1..1..0..0..0. .1..0..0..1..1. .1..0..1..0..1. .0..1..1..0..1

%Y Cf. A304704.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 17 2018

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 22 07:29 EDT 2019. Contains 328315 sequences. (Running on oeis4.)