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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A198665 Number of nX4 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors 1

%I #5 Mar 31 2012 12:36:34

%S 2,65,2715,199923,16089057,1382332582,119026441960,10314841920242,

%T 893422225702521,77438142132961570,6711121950891144754,

%U 581664320030297340439,50412657929233287557664,4369297837622133342788917

%N Number of nX4 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors

%C Column 4 of A198669

%H R. H. Hardin, <a href="/A198665/b198665.txt">Table of n, a(n) for n = 1..74</a>

%e Some solutions with all values 0 to 4 for n=3

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

%e ..0..1..3..4....2..3..3..3....2..3..3..3....2..2..3..3....0..0..1..2

%e ..3..3..3..4....2..4..4..3....2..4..4..4....4..4..1..1....3..3..4..4

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 28 2011

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.

Last modified June 25 13:13 EDT 2024. Contains 373705 sequences. (Running on oeis4.)