A217966 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 3Xn array

27, 77, 835, 5415, 45043, 336927, 2675127, 20711527, 162237197, 1264467637, 9878676929, 77096409709, 601984698319, 4699383563019, 36689365591653, 286431238079077, 2236192425051273, 17457988805711127, 136295317877977821

Offset

1,1

Comments

Row 3 of A217964

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

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

Crossrefs

Sequence in context: A297326 A044165 A044546 * A255186 A121737 A124726

Adjacent sequences: A217963 A217964 A217965 * A217967 A217968 A217969

Keyword

nonn

Author

R. H. Hardin Oct 16 2012

Status

approved