A266907 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north, west or southwest neighbor modulo 5 and the upper left element equal to 0.

9, 331, 31550, 4320344, 697988671, 118566001021, 20596115769130, 3665830346165120, 670363834764412044

Offset

1,1

Comments

Row 5 of A266904.

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Cf. A266904.

Sequence in context: A041619 A111968 A289196 * A288547 A303208 A196883

Adjacent sequences: A266904 A266905 A266906 * A266908 A266909 A266910

Keyword

nonn

Author

R. H. Hardin, Jan 05 2016

Status

approved