A207476 Number of nX5 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal

788, 620944, 236422326, 103954441786, 45141978255552, 19555176286561332, 8467264566580418754, 3667158147033103349794, 1588327565600875808037214, 687938556053634416676488002, 297958937730098162456526988934

Offset

1,1

Comments

Column 5 of A207479

Links

R. H. Hardin, Table of n, a(n) for n = 1..25

Example

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

Crossrefs

Sequence in context: A072722 A180159 A207280 * A207532 A167587 A182387

Adjacent sequences: A207473 A207474 A207475 * A207477 A207478 A207479

Keyword

nonn

Author

R. H. Hardin Feb 18 2012

Status

approved