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A200267
Number of 0..3 arrays x(0..n+1) of n+2 elements with zero n-1st differences
0
1, 4, 4, 6, 8, 8, 8, 16, 4, 10, 12, 36, 20, 48, 8, 20, 28, 70, 28, 154, 8, 32, 40, 174, 16, 100, 4, 38, 44, 118
OFFSET
1,2
COMMENTS
Column 3 of A200272
EXAMPLE
All solutions for n=6
..1....2....2....1....1....3....2....0
..0....3....1....1....2....3....2....0
..1....2....2....1....1....3....2....0
..2....1....3....1....0....3....2....0
..2....1....3....1....0....3....2....0
..1....2....2....1....1....3....2....0
..0....3....1....1....2....3....2....0
..1....2....2....1....1....3....2....0
CROSSREFS
Sequence in context: A240119 A292755 A294021 * A273308 A105790 A338895
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 15 2011
STATUS
approved