A235751 Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise

26852, 2349533, 214506660, 15727633969, 1128357765708, 70340776990634, 4196024974985786, 228047698147328939, 11808293463027281095, 571932616234637126758, 26460991147607025733587, 1162925364450912994914218

Offset

1,1

Comments

Column 3 of A235752

Links

R. H. Hardin, Table of n, a(n) for n = 1..69

Example

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

Crossrefs

Sequence in context: A234158 A093180 A093181 * A235814 A199547 A051025

Adjacent sequences: A235748 A235749 A235750 * A235752 A235753 A235754

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved