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A192078
Number of run-unimodal words of length 2n.
1
1, 2, 4, 8, 12, 18, 38
OFFSET
1,2
LINKS
J. L. Schulman, The quantifier semigroup for bipartite graphs, Electronic Journal of Combinatorics, 18 (2011), #P123.
CROSSREFS
Cf. A192079.
Sequence in context: A134181 A171645 A125606 * A136184 A011908 A117455
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jun 23 2011
STATUS
approved