Number of Dyck paths of semilength n such that the number of peaks in each positive level is a term of this sequence.

A288390

Number of Dyck paths of semilength n such that the number of peaks in each positive level is a term of this sequence.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =11a(6) =28a(7) =79a(8) =215a(9) =629a(10) =1809a(11) =5426a(12) =16470a(13) =50317a(14) =155322a(15) =483924a(16) =1521732a(17) =4822068a(18) =15360504a(19) =49144119a(20) =158049374a(21) =510824766a(22) =1657541406a(23) =5396486955a(24) =17626155846a(25) =57754129486a(26) =189807753894a(27) =625506513608

External references