A218528 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 7Xn array

16384, 410218, 340133516, 64278999490, 23498366579584, 7051080210074740, 2345237392530015812, 767685099510019845022

Offset

1,1

Comments

Row 7 of A218522

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A255666 A220767 A115348 * A016783 A016807 A231845

Adjacent sequences: A218525 A218526 A218527 * A218529 A218530 A218531

Keyword

nonn

Author

R. H. Hardin Oct 31 2012

Status

approved