A208580 Number of nX5 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors

52, 84124, 960563033, 35787552851324, 3233126493451564482, 596705277048973363385024, 200823740464350277512414467867

Offset

1,1

Comments

Column 5 of A208581

Links

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

Example

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

Crossrefs

Sequence in context: A206388 A263223 A198525 * A208585 A208464 A211252

Adjacent sequences: A208577 A208578 A208579 * A208581 A208582 A208583

Keyword

nonn

Author

R. H. Hardin Feb 29 2012

Status

approved