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!)
A233243 Number of 5Xn 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order 1

%I #4 Dec 06 2013 13:56:14

%S 236,123352,107709266,94601758339,83262848013541,73288254642491677,

%T 64509967001742933388,56783249139903123029508,

%U 49982026556098478471557939,43995424674982065897599967684,38725869104364346871720595426476

%N Number of 5Xn 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order

%C Row 5 of A233239

%H R. H. Hardin, <a href="/A233243/b233243.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%e ..0..4....2..1....0..0....4..4....2..1....0..1....2..5....2..2....2..1....4..4

%e ..0..1....2..5....2..2....5..2....3..4....5..1....1..0....1..5....0..4....5..5

%e ..3..1....1..2....4..0....1..3....5..4....2..5....4..0....5..3....0..1....4..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 06 2013

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 9 13:34 EDT 2024. Contains 372351 sequences. (Running on oeis4.)