Convolution of Catalan and Fibonacci numbers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =12a(5) =31a(6) =85a(7) =248a(8) =762a(9) =2440a(10) =8064a(11) =27300a(12) =94150a(13) =329462a(14) =1166512a(15) =4170414a(16) =15031771a(17) =54559855a(18) =199236416a(19) =731434971a(20) =2697934577a(21) =9993489968a(22) =37157691565a(23) =138633745173a(24) =518851050388