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!)
A224637 Number of (n+6)X(n+6) 0..2 matrices with each 7X7 subblock idempotent 0

%I #4 Apr 13 2013 07:36:30

%S 145121216,1268962,1800748,2157776,2323256,2397590,2432656,2451680,

%T 3552688

%N Number of (n+6)X(n+6) 0..2 matrices with each 7X7 subblock idempotent

%C Diagonal of A224642

%e Some solutions for n=2

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 13 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 July 21 09:38 EDT 2024. Contains 374472 sequences. (Running on oeis4.)