A235733 Number of (n+1)X(5+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise

2660, 102683, 3906424, 146785037, 5507798734, 206338701948, 7729359642112, 289479683332559, 10841634018438254, 406031478000180997, 15206389099680101773, 569496214098940360752, 21328285621717396456336

Offset

1,1

Comments

Column 5 of A235736

Links

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

Example

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

Crossrefs

Sequence in context: A225023 A251162 A217440 * A235514 A197108 A224685

Adjacent sequences: A235730 A235731 A235732 * A235734 A235735 A235736

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved