A183706 Number of (n+1)X6 0..3 arrays with every 2X2 subblock nonsingular

5263608, 9154058448, 15840740585184, 27440831422595136, 47524363124861668992, 82311212150455188873408, 142559496381482334039141888, 246907689712402743573482286144

Offset

1,1

Comments

Column 5 of A183710

Links

R. H. Hardin, Table of n, a(n) for n = 1..157

Example

Some solutions for 3X6
..0..2..0..2..0..2....0..2..0..2..0..1....0..2..0..2..0..2....0..2..0..2..0..3
..2..0..2..0..2..1....1..0..2..0..2..0....3..0..2..0..2..0....2..0..2..0..2..3
..2..1..0..3..3..0....2..1..1..3..1..2....0..3..1..3..0..1....0..3..1..3..3..0

Crossrefs

Sequence in context: A125780 A294988 A183746 * A236711 A184782 A116105

Adjacent sequences: A183703 A183704 A183705 * A183707 A183708 A183709

Keyword

nonn

Author

R. H. Hardin Jan 06 2011

Status

approved