Number of Motzkin meanders of length n with an odd number of humps and an even number of peaks.

A325923

Number of Motzkin meanders of length n with an odd number of humps and an even number of peaks.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =5a(5) =18a(6) =56a(7) =163a(8) =459a(9) =1286a(10) =3640a(11) =10479a(12) =30659a(13) =90738a(14) =270092a(15) =804833a(16) =2393929a(17) =7098790a(18) =20984188a(19) =61872587a(20) =182130495a(21) =535698422a(22) =1575478728a(23) =4635125097a(24) =13645054833a(25) =40196623234a(26) =118493318904a(27) =349506908369

External references