A219130 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 3Xn array

27, 69, 787, 3495, 27993, 154447, 1080809, 6526907, 43241983, 270431585, 1753511935, 11117046371, 71479973835, 455588313465, 2919712813815, 18647687495411, 119353646989167, 762902760386741, 4880484858150293

Offset

1,1

Comments

Row 3 of A219128

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

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

Crossrefs

Sequence in context: A250134 A116353 A224525 * A116302 A181976 A039414

Adjacent sequences: A219127 A219128 A219129 * A219131 A219132 A219133

Keyword

nonn

Author

R. H. Hardin Nov 12 2012

Status

approved