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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A202886 Number of nX5 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1

%I

%S 51,13345,2223723,348151747,56006562037,9024909392725,

%T 1452080571954205,233641209300452607,37595413242729744773,

%U 6049464276674659581373,973416350404566342317495,156632059367518718442398187

%N Number of nX5 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

%C Column 5 of A202889

%H R. H. Hardin, <a href="/A202886/b202886.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2..2..1..2..2....1..0..0..2..2....1..2..2..1..0....1..1..1..2..0

%e ..1..1..1..0..2....2..2..0..0..1....0..1..2..0..0....0..2..2..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 25 2011

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 12 21:31 EDT 2020. Contains 335669 sequences. (Running on oeis4.)