Female of (1/(n+1),n/(1+n)) pair function used to get a dual population Fibonacci.

Terms

a(0) =0a(1) =1a(2) =0a(3) =1a(4) =2a(5) =3a(6) =5a(7) =8a(8) =13a(9) =20a(10) =34a(11) =54a(12) =88a(13) =141a(14) =230a(15) =368a(16) =599a(17) =962a(18) =1562a(19) =2512a(20) =4077a(21) =6562a(22) =10644a(23) =17149a(24) =27804a(25) =44827a(26) =72655a(27) =117201a(28) =189907a(29) =306473