Expansion of b(3)*b(4)/(1 - 2*x + x^5), where b(k) = (1-x^k)/(1-x).

Terms

a(0) =1a(1) =4a(2) =11a(3) =25a(4) =52a(5) =104a(6) =204a(7) =397a(8) =769a(9) =1486a(10) =2868a(11) =5532a(12) =10667a(13) =20565a(14) =39644a(15) =76420a(16) =147308a(17) =283949a(18) =547333a(19) =1055022a(20) =2033624a(21) =3919940a(22) =7555931a(23) =14564529a(24) =28074036a(25) =54114448a(26) =104308956a(27) =201061981a(28) =387559433a(29) =747044830