A221117 Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops

0, 0, 304, 73267, 11678172, 1734890879, 247812858484, 35055335425051, 4931618049890052, 692510122093470450, 97148768309200805284, 13622697631155888055117, 1909831288992348327369008

Offset

1,3

Comments

Row 5 of A221114

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

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

Crossrefs

Sequence in context: A172228 A281329 A293092 * A216260 A160577 A256603

Adjacent sequences: A221114 A221115 A221116 * A221118 A221119 A221120

Keyword

nonn

Author

R. H. Hardin Jan 02 2013

Status

approved