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!)
A285145 Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1. 1

%I #7 Apr 05 2020 21:34:32

%S 0,2,113,11574,4551741,7586120602,52105131287528,1469435682255774972,

%T 168943399492409779855098,78854409689567939731003347822,

%U 148970519290227262688309540510302237

%N Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

%C Diagonal of A285152.

%H R. H. Hardin, <a href="/A285145/b285145.txt">Table of n, a(n) for n = 1..12</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A285152.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 12 2017

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 03:28 EDT 2024. Contains 371235 sequences. (Running on oeis4.)