A219122 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 n X n array.

3, 15, 787, 42231, 20168447, 12934559893, 54444733905291

Offset

1,1

Comments

Diagonal of A219128.

Links

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

Example

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

Crossrefs

Cf. A219128.

Sequence in context: A167220 A296939 A077399 * A293541 A207332 A013409

Adjacent sequences: A219119 A219120 A219121 * A219123 A219124 A219125

Keyword

nonn

Author

R. H. Hardin, Nov 12 2012

Status

approved