login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 


Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors
1

%I #5 Mar 31 2012 12:36:36

%S 365,571530,713445976,898852775335,1132589231853096,

%T 1427019666767669979,1797997097480559332224,2265416280260844187870380,

%U 2854348741463033805904551375,3596383952736036093799275624989

%N Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors

%C Column 7 of A199655

%H R. H. Hardin, <a href="/A199654/b199654.txt">Table of n, a(n) for n = 1..35</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 08 2011

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | 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 September 21 12:44 EDT 2024. Contains 376084 sequences. (Running on oeis4.)