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!)
A305691 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 08 2018 08:18:29

%S 8,5824,453553,47448563,4791219558,484920924010,49083436693252,

%T 4968168200482612,502868587709213674,50899470674105259942,

%U 5151954783888699806976,521471776409885375274986

%N Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 7 of A305692.

%H R. H. Hardin, <a href="/A305691/b305691.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305692.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 08 2018

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)