A221259 Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2

0, 256, 418, 1612900, 78633756, 22466712321, 2294073688498, 399487764096100, 51031822108216122, 7730096571419434884, 1061888266253693915768, 154122481474602369093121, 21681358901642544133423968

Offset

1,2

Comments

Row 5 of A221255

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

Example

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

Crossrefs

Sequence in context: A046310 A115176 A299156 * A223693 A223064 A206206

Adjacent sequences: A221256 A221257 A221258 * A221260 A221261 A221262

Keyword

nonn

Author

R. H. Hardin Jan 06 2013

Status

approved