A233114 Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.

29, 123, 464, 1636, 5523, 18027, 57505, 180104, 557624, 1710232, 5214096, 15814973, 47828131, 144246386, 434433284, 1306430965, 3926428842, 11790818795, 35400533788, 106233224821, 318796252622, 956379509076, 2869363937351

Offset

1,1

Comments

Column 1 of A233117

Links

R. H. Hardin, Table of n, a(n) for n = 1..34

Example

Some solutions for n=5
..0..1....0..1....1..1....1..0....1..1....0..1....2..0....1..0....0..1....1..0
..0..1....1..0....0..2....1..0....1..1....0..2....2..0....0..1....2..0....1..0
..0..2....0..1....1..1....0..2....1..1....0..2....2..0....0..2....1..2....0..2
..1..1....0..1....0..2....1..2....1..1....0..2....1..1....0..2....2..1....1..2
..2..0....1..2....1..1....1..2....1..2....2..0....0..2....2..0....1..2....2..1
..1..2....1..2....2..1....2..2....1..2....2..1....0..2....0..2....1..2....2..2

Crossrefs

Sequence in context: A118614 A033660 A287406 * A264672 A157145 A142438

Adjacent sequences: A233111 A233112 A233113 * A233115 A233116 A233117

Keyword

nonn

Author

R. H. Hardin, Dec 04 2013

Status

approved