A217543 Number of n X 4 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 n X 4 array.

17, 17, 289, 1401, 10213, 64473, 431241, 2824177, 18626981, 122511585, 806649933, 5309370017, 34951088945, 230067107597, 1514453687653, 9969070507989, 65622772473105, 431970507432905, 2843503407066145, 18717737327894065

Offset

1,1

Comments

Column 4 of A217547.

Links

R. H. Hardin, Table of n, a(n) for n = 1..33

Example

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

Crossrefs

Cf. A217547.

Sequence in context: A146391 A145945 A165838 * A296757 A297287 A018822

Adjacent sequences: A217540 A217541 A217542 * A217544 A217545 A217546

Keyword

nonn

Author

R. H. Hardin, Oct 06 2012

Status

approved