Number of matchings avoiding a certain pattern (see Cervetti-Ferrari, Cor. 3.1(i)).

A338724

Number of matchings avoiding a certain pattern (see Cervetti-Ferrari, Cor. 3.1(i)).

Terms

    a(0) =1a(1) =3a(2) =15a(3) =104a(4) =910a(5) =9503a(6) =114317a(7) =1547124a(8) =23169162a(9) =379308106

External references