A250861 Number of (n+2)X(1+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column

262144, 4096000, 64000000, 1000000000, 8000000000, 64000000000, 512000000000, 2744000000000, 14706125000000, 78815638671875, 322828856000000, 1322306994176000, 5416169448144896, 18279571887489024, 61693555120275456

Offset

1,1

Comments

Column 1 of A250868

Links

R. H. Hardin, Table of n, a(n) for n = 1..94

Example

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

Crossrefs

Sequence in context: A224803 A223336 A250868 * A186629 A186626 A016998

Adjacent sequences: A250858 A250859 A250860 * A250862 A250863 A250864

Keyword

nonn

Author

R. H. Hardin, Nov 28 2014

Status

approved