A Fibonacci-Pell convolution.

Terms

a(0) =1a(1) =2a(2) =6a(3) =15a(4) =38a(5) =94a(6) =231a(7) =564a(8) =1372a(9) =3329a(10) =8064a(11) =19512a(12) =47177a(13) =114010a(14) =275430a(15) =665247a(16) =1606534a(17) =3879302a(18) =9366735a(19) =22615356a(20) =54601628a(21) =131825377a(22) =318263328a(23) =768369744a(24) =1855031473a(25) =4478479058a(26) =10812064614a(27) =26102729679a(28) =63017720390