A265091 Number of 5Xn arrays containing n copies of 0..5-1 with row sums equal and column sums equal.

0, 120, 1080, 493920, 75502080, 16074373800, 3565914584400

Offset

1,2

Comments

Row 5 of A265089.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A265089.

Sequence in context: A133119 A052777 A052765 * A371107 A371051 A259519

Adjacent sequences: A265088 A265089 A265090 * A265092 A265093 A265094

Keyword

nonn

Author

R. H. Hardin, Dec 01 2015

Status

approved