Triangular array associated with Schroeder numbers.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =2a(6) =1a(7) =5a(8) =10a(9) =6a(10) =1a(11) =7a(12) =22a(13) =38a(14) =22a(15) =1a(16) =9a(17) =38a(18) =98a(19) =158a(20) =90a(21) =1a(22) =11a(23) =58a(24) =194a(25) =450a(26) =698a(27) =394a(28) =1a(29) =13