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!)
A232776 Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 0

%I #3 Nov 30 2013 06:30:25

%S 118,1176,9607,71172,474271,2888324,16411386,87759236,445218879,

%T 2163198554,10117422745,45757881000,201068414833,861138559305,

%U 3604319480707,14783116721340,59536205151486

%N Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing

%C Column 2 of A232778

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 30 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 13 22:24 EDT 2024. Contains 374288 sequences. (Running on oeis4.)