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!)
A185520 Number of (n+1)X9 0..2 arrays with every 2X2 subblock singular 1

%I #5 Mar 31 2012 12:36:02

%S 841449,853020411,119752453041,56140705014995,12721664424927033,

%T 4536327635584899147,1241739109392066416737,401495654334865659721795,

%U 118095161592668358071069961,36895636527963491594862394779

%N Number of (n+1)X9 0..2 arrays with every 2X2 subblock singular

%C Column 8 of A185521

%H R. H. Hardin, <a href="/A185520/b185520.txt">Table of n, a(n) for n = 1..72</a>

%e Some solutions for 3X9

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 29 2011

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 June 21 23:34 EDT 2024. Contains 373560 sequences. (Running on oeis4.)