A203712 Number of (n+1)X4 0..5 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing

64568, 23213355, 9336835297, 2904393889106, 721542795363654, 149182735653334500, 26470648450568790566, 4120644647875346288314, 572090230307626986813505, 71746062664768072379446244

Offset

1,1

Comments

Column 3 of A203714

Links

R. H. Hardin, Table of n, a(n) for n = 1..131

Example

Some solutions for n=4
..3..2..0..2....4..5..4..4....0..1..0..2....4..4..3..4....3..0..2..3
..2..3..5..3....5..4..5..5....0..3..4..2....4..4..5..4....1..4..3..2
..4..4..2..4....4..5..5..5....0..4..3..5....3..5..4..5....2..5..0..4
..5..3..5..4....4..5..5..5....4..1..2..5....4..4..5..4....2..5..2..0
..3..5..4..4....4..5..5..5....1..4..5..3....4..5..4..5....2..5..4..3

Crossrefs

Sequence in context: A205333 A165689 A236469 * A061738 A350800 A342327

Adjacent sequences: A203709 A203710 A203711 * A203713 A203714 A203715

Keyword

nonn

Author

R. H. Hardin Jan 04 2012

Status

approved