A220756 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..3 n X n array

4, 28, 4328, 548130, 1383229596, 3442732323766, 136599937752568134

Offset

1,1

Comments

Diagonal of A220761

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A334598 A000838 A218174 * A202713 A129290 A307553

Adjacent sequences: A220753 A220754 A220755 * A220757 A220758 A220759

Keyword

nonn

Author

R. H. Hardin Dec 19 2012

Status

approved