A236521 Number of (n+1)X(6+1) 0..1 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise

4020, 108214, 2728079, 63997604, 1448355717, 31459840764, 668463714817, 13878535769685, 284431385172713, 5756312538787583, 115657256984698963, 2308624191351314296, 45907689651660537908, 909911916639050545637

Offset

1,1

Comments

Column 6 of A236523

Links

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

Example

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

Crossrefs

Sequence in context: A282128 A099229 A205889 * A235658 A186530 A124728

Adjacent sequences: A236518 A236519 A236520 * A236522 A236523 A236524

Keyword

nonn

Author

R. H. Hardin, Jan 27 2014

Status

approved