login
A183415
Number of nX2 0..2 arrays with each sum of a(1..i,1..j) no greater than i*j
1
5, 34, 249, 1920, 15232, 123323, 1012996, 8413325, 70482133, 594587235, 5044756083, 43007895169, 368151018388, 3162466934006, 27248906449457, 235414313839524, 2038652180610193, 17691623325368274, 153819626587560407
OFFSET
1,1
COMMENTS
Column 2 of A183419
LINKS
EXAMPLE
Some solutions for 4X2
..0..0....1..0....1..0....0..0....1..0....0..0....1..0....0..2....0..1....0..0
..2..2....1..0....0..2....1..2....0..1....0..0....0..2....2..0....0..0....2..2
..1..0....1..2....0..2....0..1....1..0....0..2....1..2....0..1....2..0....0..1
..1..0....0..2....2..0....2..2....1..2....2..0....0..2....0..0....0..0....0..1
CROSSREFS
Sequence in context: A334608 A120469 A180909 * A066559 A073279 A080503
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2011
STATUS
approved