A213966 Number of 6X6 0..n matrices with row and column 1..6 having sum <= i*n.

176041978, 34107691901433, 261421322089741976, 314911377440218697950, 113762889909962601897876, 17583943206407091985366455, 1444750727564469383124521648

Offset

1,1

Comments

Row 6 of A213962

Links

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

Example

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

Crossrefs

Sequence in context: A323056 A300555 A306876 * A206520 A127955 A047738

Adjacent sequences: A213963 A213964 A213965 * A213967 A213968 A213969

Keyword

nonn

Author

R. H. Hardin, Jun 28 2012

Status

approved