A266864 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north or southwest neighbor modulo 5 and the upper left element equal to 0.

9, 1281, 328701, 104767812, 37478933496, 14445711101455, 5872334060687409, 2483169766664902279, 1082314714218076313666

Offset

1,1

Comments

Row 5 of A266861.

Links

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

Example

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

Crossrefs

Cf. A266861.

Sequence in context: A202981 A276823 A020261 * A076442 A076704 A117053

Adjacent sequences: A266861 A266862 A266863 * A266865 A266866 A266867

Keyword

nonn

Author

R. H. Hardin, Jan 04 2016

Status

approved