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A184670
Number of (n+1)X7 0..3 arrays with no 2X2 subblock summing to less than 6
1
27278035, 117938741095, 402221585928132, 1498459859767029015, 5429971895805945122143, 19869188673828370548366580, 72469574283521150229737165516, 264615725211389828099780842721919
OFFSET
1,1
COMMENTS
Column 6 of A184673
LINKS
EXAMPLE
Some solutions for 3X7
..0..0..0..2..0..1..1....0..0..0..0..2..1..2....0..0..0..2..2..2..3
..3..3..3..2..3..2..2....3..3..3..3..2..3..0....3..3..3..2..0..3..2
..0..0..0..1..2..2..2....0..0..0..0..3..3..2....0..0..0..3..3..2..2
CROSSREFS
Sequence in context: A046509 A327281 A251806 * A069342 A151698 A202571
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2011
STATUS
approved