Dying rabbits: a(n) = a(n-1) + a(n-2) - a(n-11).

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =13a(8) =21a(9) =34a(10) =55a(11) =89a(12) =143a(13) =231a(14) =372a(15) =600a(16) =967a(17) =1559a(18) =2513a(19) =4051a(20) =6530a(21) =10526a(22) =16967a(23) =27350a(24) =44086a(25) =71064a(26) =114550a(27) =184647a(28) =297638a(29) =479772