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%I #9 Sep 14 2022 17:09:35
%S 1,3,15,105,944,10341,133132,1961919,32441303,592718236
%N Number of matchings avoiding a certain pattern (see Cervetti-Ferrari, Cor. 3.1(ii)).
%H Matteo Cervetti and Luca Ferrari, <a href="https://arxiv.org/abs/2009.01024">Pattern avoidance in the matching pattern poset</a>, arXiv:2009.01024 [math.CO], 2020.
%H Matteo Cervetti and Luca Ferrari, <a href="https://doi.org/10.1007/s00026-022-00596-1">Enumeration of Some Classes of Pattern Avoiding Matchings, with a Glimpse into the Matching Pattern Poset</a>, Annals of Combinatorics (2022).
%Y Cf. A338724.
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_, Nov 30 2020
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