A184094 Number of (n+1)X9 0..3 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

55451, 254174, 22190358, 2367377082, 378836704735

Offset

1,1

Comments

Column 8 of A184095

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 3X9
..0..1..1..1..1..1..2..2..2....0..0..0..0..0..1..1..1..3
..1..1..1..1..1..1..0..1..1....0..1..1..1..2..0..1..1..0
..1..1..1..1..1..1..3..2..2....1..0..0..1..0..1..1..1..3
...
...3..4..4..4..4..4..5..6.......1..2..2..3..3..3..4..5...
...4..4..4..4..4..5..6..6.......2..2..3..4..3..3..4..5...

Crossrefs

Sequence in context: A190384 A217692 A061740 * A345621 A346339 A345636

Adjacent sequences: A184091 A184092 A184093 * A184095 A184096 A184097

Keyword

nonn

Author

R. H. Hardin Jan 09 2011

Status

approved