A184133 Number of nX5 0..2 arrays with rows and columns in nondecreasing order

21, 972, 70243, 5136783, 318174607, 16226388113, 692646032166, 25325301730396, 809428667338479, 22988798937359989, 587867998879645140, 13680436324388196991, 292276898997326389982, 5775131297680469786518

Offset

1,1

Comments

Column 5 of A184137

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 3X5
..0..0..0..0..0....0..0..1..2..2....0..1..1..2..2....0..0..1..1..2
..0..0..0..0..2....0..0..2..0..0....0..2..2..1..2....1..1..0..0..2
..0..0..1..2..0....1..1..1..0..0....1..2..2..1..2....2..2..0..2..0

Crossrefs

Sequence in context: A101732 A006301 A220384 * A004704 A138473 A273281

Adjacent sequences: A184130 A184131 A184132 * A184134 A184135 A184136

Keyword

nonn

Author

R. H. Hardin Jan 09 2011

Status

approved