The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A297342 Number of 5Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s. 1

%I

%S 32,144,1847,13428,130297,1091456,9831967,85542000,756325028,

%T 6639723016,58469141194,514208164575,4524712183114,39805340857479,

%U 350215429976207,3081134075539171,27107777182975704,238491993776275515

%N Number of 5Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.

%C Row 5 of A297338.

%H R. H. Hardin, <a href="/A297342/b297342.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A297342/a297342.txt">Empirical recurrence of order 82</a>

%F Empirical recurrence of order 82 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297338.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 28 2017

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.

Last modified January 20 10:51 EST 2020. Contains 331081 sequences. (Running on oeis4.)