login
A209088
Number of nX4 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically
1
232, 53824, 10347649, 1971161340, 376488811859, 71929610916133, 13741947409424169, 2625341010784019740, 501560608046590007962, 95821111921567728826717, 18306232813135620198547558
OFFSET
1,1
COMMENTS
Column 4 of A209092
LINKS
EXAMPLE
Some solutions for n=4
..2..2..1..0....3..1..1..2....0..1..3..0....1..3..2..1....0..1..1..3
..3..2..2..0....0..1..1..0....2..0..3..0....1..2..2..1....2..2..1..2
..2..3..3..0....0..0..3..0....2..0..3..1....0..2..0..3....1..1..3..2
..1..2..3..3....1..2..2..0....1..2..0..2....0..0..2..1....0..3..3..0
CROSSREFS
Sequence in context: A206963 A206573 A207578 * A207053 A207130 A125850
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 05 2012
STATUS
approved