Sum of digits of Catalan numbers.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =5a(5) =6a(6) =6a(7) =15a(8) =8a(9) =20a(10) =29a(11) =34a(12) =13a(13) =22a(14) =27a(15) =45a(16) =36a(17) =42a(18) =42a(19) =42a(20) =30a(21) =39a(22) =48a(23) =45a(24) =54a(25) =54a(26) =53a(27) =56a(28) =65a(29) =49