A233066 Number of (5+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..5+1} nondecreasing

132, 1933, 26819, 334580, 3849923, 41069900, 410815334, 3882304854, 34909282490, 300390631126, 2485871001226, 19866918000644, 153888527063899

Offset

1,1

Comments

Row 5 of A233062

Links

Table of n, a(n) for n=1..13.

Example

Some solutions for n=4
..0..0..0..0..1....0..0..0..0..1....0..0..0..1..0....0..0..0..1..0
..0..0..1..0..1....0..0..0..0..1....0..0..0..1..0....0..0..0..1..0
..1..0..0..1..0....0..0..1..0..0....0..0..1..0..1....0..0..1..1..0
..0..1..0..1..1....1..0..0..0..1....0..1..0..1..1....0..0..0..1..1
..0..0..1..1..1....0..0..0..1..1....0..0..1..1..1....0..1..0..0..1
..1..1..1..1..1....0..1..1..1..1....0..1..1..1..1....0..0..1..0..1

Crossrefs

Sequence in context: A362104 A213380 A119982 * A282751 A129975 A064303

Adjacent sequences: A233063 A233064 A233065 * A233067 A233068 A233069

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved