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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A214109 Number of 0..3 colorings on an nX6 array circular in the 6 direction with new values 0..3 introduced in row major order 1

%I

%S 31,4994,825105,136579852,22615881851,3745149506514,620197951750765,

%T 102705230544465812,17008068694073067351,2816550096827130042274,

%U 466423009554657364966505,77240033763830053132251132

%N Number of 0..3 colorings on an nX6 array circular in the 6 direction with new values 0..3 introduced in row major order

%C Column 5 of A214112

%H R. H. Hardin, <a href="/A214109/b214109.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 200*a(n-1) -5769*a(n-2) +11744*a(n-3) +43057*a(n-4) -89856*a(n-5) +40625*a(n-6).

%F Empirical: G.f. -x*(31-1206*x+5144*x^2+5174*x^3-42107*x^4+28260*x^5) / ( (x-1)*(40625*x^5-49231*x^4-6174*x^3+5570*x^2-199*x+1) ). - _R. J. Mathar_, Jul 04 2012

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jul 04 2012

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 17 09:20 EDT 2022. Contains 353741 sequences. (Running on oeis4.)