A184090 Number of (n+1)X5 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

1714, 2848, 40401, 368326, 4086234, 35402227, 305194632, 2367377082, 17778498024, 125853131068, 873427953885, 5795936973556, 37384268765581, 229298314395861, 1348567299500573, 7478116128799936, 39407884320224587

Offset

1,1

Comments

Column 4 of A184095

Links

R. H. Hardin, Table of n, a(n) for n = 1..63

Example

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

Crossrefs

Sequence in context: A242102 A221481 A008744 * A297560 A157247 A347969

Adjacent sequences: A184087 A184088 A184089 * A184091 A184092 A184093

Keyword

nonn

Author

R. H. Hardin Jan 09 2011

Status

approved