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A189077
Number of compositions of n that avoid the pattern 13-2.
3
1, 1, 2, 4, 8, 16, 31, 60, 115, 218, 411, 770, 1434, 2656, 4897, 8991
OFFSET
0,3
LINKS
S. Heubach, T. Mansour and A. O. Munagi, Avoiding Permutation Patterns of Type (2,1) in Compositions, Online Journal of Analytic Combinatorics, 4 (2009).
CROSSREFS
Sequence in context: A188900 A189075 A345372 * A118891 A107066 A141019
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 16 2011
STATUS
approved