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A232386
Number of (n+1)X(3+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal
1
78, 192, 1192, 4646, 24848, 120264, 589172, 2974842, 14684400, 73356856, 366069576, 1823482622, 9105338968, 45429265214, 226696769918, 1131682247286, 5648099378356, 28193675408362, 140735701677746, 702504316645786
OFFSET
1,1
COMMENTS
Column 3 of A232391
LINKS
EXAMPLE
Some solutions for n=6
..0..1..2..3....0..2..0..1....3..0..2..1....0..1..2..3....0..1..0..2
..2..3..1..0....1..3..2..0....2..1..3..0....2..3..1..0....3..2..3..1
..1..0..3..1....2..0..3..1....0..2..1..3....1..0..3..1....0..1..0..2
..3..1..2..0....3..1..2..3....1..3..2..1....3..1..2..3....3..2..1..3
..2..0..1..2....2..3..0..1....0..1..3..0....2..3..0..1....0..3..2..0
..3..2..3..1....0..2..3..2....3..0..2..1....0..1..3..2....1..0..1..2
..0..1..2..0....1..0..1..3....2..1..3..0....3..2..1..0....2..3..0..3
CROSSREFS
Sequence in context: A119146 A044410 A044791 * A257484 A068130 A118938
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2013
STATUS
approved