A203711 Number of (n+1)X3 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

5411, 367895, 23213355, 1162808408, 48020026044, 1693919110707, 52384282627294, 1447474014038818, 36259245337543775, 832882956832999612, 17705769480997207870, 351009141968630021172, 6530844991310876142574

Offset

1,1

Comments

Column 2 of A203714

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A190106 A252572 A035902 * A105654 A124410 A211775

Adjacent sequences: A203708 A203709 A203710 * A203712 A203713 A203714

Keyword

nonn

Author

R. H. Hardin Jan 04 2012

Status

approved