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!)
A206572 Number of nX3 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal 1

%I #5 Mar 31 2012 12:37:12

%S 61,3721,188699,9509750,478456896,24071410239,1211164182464,

%T 60940227961282,3066196250895643,154274761365491709,

%U 7762277323583045839,390556037506212530634,19650677663071356937032,988716329728016793029948

%N Number of nX3 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal

%C Column 3 of A206577

%H R. H. Hardin, <a href="/A206572/b206572.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 09 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 April 19 04:26 EDT 2024. Contains 371782 sequences. (Running on oeis4.)