A235529 Number of (n+1)X(3+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise

2996, 102687, 4295649, 140614400, 4492923265, 120808065816, 3063485786072, 69645586587955, 1495519651732182, 29857757996570399, 567731079489296912, 10249467332866019470, 177776286043094726447, 2965935579570089700509

Offset

1,1

Comments

Column 3 of A235531

Links

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

Example

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

Crossrefs

Sequence in context: A178326 A063055 A235754 * A106766 A119892 A333013

Adjacent sequences: A235526 A235527 A235528 * A235530 A235531 A235532

Keyword

nonn

Author

R. H. Hardin, Jan 11 2014

Status

approved