A268011 Number of 2Xn 0..n arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

2, 14, 159, 3183, 88243, 3222467, 147078491, 8136718923, 533120818425, 40652888444126, 3558115295935814, 353411626588934284, 39458109882401312523, 4911875879772046994711, 676928473660605019065934

Offset

1,1

Comments

Row 2 of A268009.

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

Some solutions for n=5
..0..0..1..2..2....0..1..2..0..3....0..0..1..2..2....0..1..1..2..1
..2..2..1..3..2....2..3..3..2..4....2..0..3..1..2....1..2..0..2..0

Crossrefs

Cf. A268009.

Sequence in context: A349312 A218295 A354242 * A052112 A354241 A074635

Adjacent sequences: A268008 A268009 A268010 * A268012 A268013 A268014

Keyword

nonn

Author

R. H. Hardin, Jan 24 2016

Status

approved