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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A214115 Number of 0..3 colorings of a 4X(n+1) array circular in the n+1 direction with new values 0..3 introduced in row major order 1

%I #4 Jul 04 2012 07:12:19

%S 172,1331,110985,3008980,136579852,4797577911,191154162535,

%T 7146408189140,275880367771522,10477887715882961,401257797241430275,

%U 15301725709872289480,584778458159088101962,22323683135830513164011

%N Number of 0..3 colorings of a 4X(n+1) array circular in the n+1 direction with new values 0..3 introduced in row major order

%C Row 4 of A214112

%H R. H. Hardin, <a href="/A214115/b214115.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 26*a(n-1) +793*a(n-2) -10672*a(n-3) -111685*a(n-4) +1555742*a(n-5) +3279675*a(n-6) -80896036*a(n-7) +42501359*a(n-8) +1864752866*a(n-9) -2747661047*a(n-10) -22752052704*a(n-11) +41970382902*a(n-12) +159827903260*a(n-13) -310989873234*a(n-14) -665904810616*a(n-15) +1268829519909*a(n-16) +1620764697790*a(n-17) -2947553967077*a(n-18) -2132419325552*a(n-19) +3856072745271*a(n-20) +1195236104310*a(n-21) -2617797795489*a(n-22) +77268263580*a(n-23) +689877538245*a(n-24) -233806181994*a(n-25) +22293440379*a(n-26)

%e Some solutions for n=4

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

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

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

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

%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.

Last modified August 13 05:07 EDT 2024. Contains 375113 sequences. (Running on oeis4.)