A184076 Number of (n+1)X5 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

335, 578, 5760, 44050, 360196, 2628898, 18149260, 114306440, 641511811, 3199259658, 14641967639, 60085046104, 226607593574, 780635651041, 2485466746310, 7338252792056, 20191975951936, 52010906173702

Offset

1,1

Comments

Column 4 of A184081

Links

R. H. Hardin, Table of n, a(n) for n = 1..168

Example

Some solutions for 3X5
..1..1..1..1..2....0..0..1..1..2....0..0..1..1..2....0..1..1..1..1
..1..2..2..2..2....0..2..0..0..0....0..1..0..1..0....1..0..0..1..1
..2..1..1..2..1....1..0..1..2..1....0..1..1..1..1....1..1..1..0..1
...
...5..6..6..7.......2..3..2..3.......1..2..3..4.......2..2..3..4...
...6..6..7..7.......3..3..3..3.......2..3..3..3.......3..2..2..3...

Crossrefs

Sequence in context: A252995 A119760 A046015 * A253227 A105099 A038648

Adjacent sequences: A184073 A184074 A184075 * A184077 A184078 A184079

Keyword

nonn

Author

R. H. Hardin Jan 09 2011

Status

approved