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

%I #12 Apr 01 2020 12:11:51

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

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

%H S. Heubach, T. Mansour and A. O. Munagi, <a href="https://web.math.rochester.edu/misc/ojac/vol4/CompType21.pdf">Avoiding Permutation Patterns of Type (2,1) in Compositions</a>, Online Journal of Analytic Combinatorics, 4 (2009).

%Y Cf. A189075, A189076.

%K nonn,more

%O 0,3

%A _N. J. A. Sloane_, Apr 16 2011

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Last modified November 29 10:47 EST 2023. Contains 367429 sequences. (Running on oeis4.)