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A222650
Number of nX1 0..3 arrays with no more than floor(nX1/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order
5
1, 1, 2, 11, 34, 131, 438, 2150, 7676, 32491, 116096, 533186, 1945184, 8362152, 30561808, 135650378, 501075616, 2155759835, 7986345032, 34780282521, 129686419290, 555913562689, 2079094345694, 8947148045345, 33609869742022
OFFSET
1,3
COMMENTS
Column 1 of A222654
LINKS
EXAMPLE
All solutions for n=3
..0....0
..1....1
..2....0
CROSSREFS
Sequence in context: A100109 A328152 A209033 * A026961 A026971 A323683
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 27 2013
STATUS
approved