Number of Dyck paths such that the sum of the peak-abscissae is n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =3a(7) =4a(8) =5a(9) =7a(10) =9a(11) =11a(12) =15a(13) =19a(14) =24a(15) =30a(16) =39a(17) =48a(18) =60a(19) =75a(20) =93a(21) =115a(22) =142a(23) =173a(24) =213a(25) =260a(26) =316a(27) =383a(28) =465a(29) =560