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!)
A203099 Number of nX6 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1

%I

%S 422,1705124,3790420430,7574530822364,15712898935252156,

%T 32766523337754473494,68145439667266350435686,

%U 141695919109060311625392330,294680177794961913094327501892

%N Number of nX6 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

%C Column 6 of A203101

%H R. H. Hardin, <a href="/A203099/b203099.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..1..1..0..1..1..0....3..3..3..3..0..1....1..2..3..1..0..1....2..3..3..2..2..2

%e ..3..0..2..1..1..0....2..0..2..1..1..1....3..3..3..3..2..1....2..2..1..1..1..2

%e ..3..1..3..1..0..2....3..2..1..1..0..1....1..2..2..0..0..2....2..3..0..1..2..2

%e ..0..1..3..0..2..2....3..0..2..1..1..0....1..1..2..2..0..2....0..3..3..3..2..1

%e ..0..2..3..3..1..0....2..0..3..3..2..1....3..3..2..1..2..2....2..2..1..2..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 29 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 January 25 15:08 EST 2021. Contains 340416 sequences. (Running on oeis4.)