login
A184068
Number of (n+1)X7 binary 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
1
81, 225, 1884, 22452, 288744, 2663589, 19694227, 116690636, 572683182, 2305864084, 7782298646, 22382616957, 56141874238, 124734871342, 249667791032, 456693083041, 773758373131, 1229106077318, 1850219475619, 2663743231907
OFFSET
1,1
COMMENTS
Column 6 of A184071
LINKS
EXAMPLE
Some solutions for 3X7
..0..0..0..1..1..1..1....0..0..0..1..1..1..1....0..0..0..0..1..1..1
..0..1..1..0..1..1..1....0..1..1..0..0..0..1....0..0..1..1..0..0..0
..1..0..0..1..1..1..1....1..0..0..0..1..1..0....0..1..0..0..0..1..1
...
...1..2..2..3..4..4.......1..2..2..2..2..3.......0..1..2..2..2..2...
...2..2..2..3..4..4.......2..2..1..1..2..2.......1..2..2..1..1..2...
CROSSREFS
Sequence in context: A255110 A062532 A075730 * A211690 A205055 A335843
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2011
STATUS
approved