A206795 Number of n X 6 0..3 arrays avoiding the pattern z z+1 z in any row, column, diagonal or antidiagonal.

3361, 11296321, 20388622016, 35954795295641, 65062863493632615, 118056098980249594900

Offset

1,1

Comments

Column 6 of A206797.

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=4
..1..0..0..0..0..3....0..1..1..3..3..0....3..1..3..0..1..1....3..2..2..3..1..1
..1..2..2..0..1..3....3..1..1..3..2..1....1..3..2..3..1..3....2..1..1..2..2..3
..1..3..3..1..1..3....1..1..1..3..2..3....2..2..1..2..3..3....2..3..3..0..0..1
..0..1..1..1..1..1....3..0..0..2..1..3....0..1..2..3..3..1....1..1..1..2..2..3

Crossrefs

Cf. A206797.

Sequence in context: A115488 A020434 A061334 * A206965 A209090 A207132

Adjacent sequences: A206792 A206793 A206794 * A206796 A206797 A206798

Keyword

nonn

Author

R. H. Hardin, Feb 12 2012

Status

approved