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A200077
Number of 0..3 arrays x(0..n) of n+1 elements with zero n-1st differences
0
1, 4, 6, 8, 14, 18, 24, 56, 26, 26, 54, 226, 260, 482, 196, 54, 128, 728, 1226, 4106, 1168, 272, 892, 4798, 1390, 1298, 962, 216, 470, 2104
OFFSET
1,2
COMMENTS
Column 3 of A200082
EXAMPLE
Some solutions for n=6
..3....1....3....1....2....1....0....2....3....2....0....0....2....1....3....2
..1....2....2....2....3....0....1....1....3....1....0....2....0....3....3....2
..1....1....1....3....2....1....2....0....3....2....0....2....0....3....1....2
..2....0....1....3....1....2....2....0....3....3....0....1....1....2....0....2
..3....0....2....2....1....2....1....1....3....3....0....0....2....1....1....2
..3....1....3....1....2....1....0....2....3....2....0....0....2....1....3....2
..1....2....2....2....3....0....1....1....3....1....0....2....0....3....3....2
CROSSREFS
Sequence in context: A320125 A110974 A173180 * A256137 A116897 A293763
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 13 2011
STATUS
approved