login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A250436 Number of (n+1)X(n+1) 0..2 arrays with nondecreasing sum of every two consecutive values in every row and column 0

%I

%S 81,2160,160000,8750000,937890625,74118870000,9682651996416,

%T 958582547645184,141763707879526656,16346105372357849088,

%U 2632478657451209588736,338880211548064890612480

%N Number of (n+1)X(n+1) 0..2 arrays with nondecreasing sum of every two consecutive values in every row and column

%C Diagonal of A250443

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 22 2014

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 29 10:34 EST 2020. Contains 331337 sequences. (Running on oeis4.)