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!)
A206956 Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal 1

%I

%S 1465,2146225,1455935650,950821989599,656572043220119,

%T 455424052435622710,314368117565737962789,216873306373656734739325,

%U 149694579632520898257449851,103334879849813837848577474301

%N Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal

%C Column 7 of A206957

%H R. H. Hardin, <a href="/A206956/b206956.txt">Table of n, a(n) for n = 1..35</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 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 October 1 12:45 EDT 2022. Contains 357147 sequences. (Running on oeis4.)