A189077 Number of compositions of n that avoid the pattern 13-2.

1, 1, 2, 4, 8, 16, 31, 60, 115, 218, 411, 770, 1434, 2656, 4897, 8991

Offset: 0

Author

N. J. A. Sloane, Apr 16 2011

Keywords

• nonn
• more

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

Cf. A189075, A189076.