This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A203323 Number of n X n 0..2 arrays with the row and column sums nondecreasing 0
 3, 32, 1510, 423595, 759320283, 9306918766618 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A203330 LINKS EXAMPLE Some solutions for n=5 ..2..2..1..0..2....0..0..2..2..2....1..2..2..1..2....2..1..1..2..2 ..2..2..1..1..1....0..2..1..1..2....1..2..1..2..2....2..1..1..2..2 ..0..1..2..2..2....2..2..2..2..1....1..1..2..2..2....2..2..1..1..2 ..2..2..1..2..0....2..2..1..2..2....2..1..1..2..2....1..1..2..2..2 ..1..0..2..2..2....2..1..2..2..2....1..1..2..2..2....0..2..2..2..2 CROSSREFS Sequence in context: A283716 A202806 A054780 * A222683 A134474 A096469 Adjacent sequences:  A203320 A203321 A203322 * A203324 A203325 A203326 KEYWORD nonn AUTHOR R. H. Hardin Dec 31 2011 STATUS approved

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