a(n)=a(a(n-5))+a(n-a(n-5)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =4a(8) =5a(9) =6a(10) =6a(11) =6a(12) =6a(13) =6a(14) =7a(15) =8a(16) =8a(17) =8a(18) =8a(19) =9a(20) =10a(21) =10a(22) =11a(23) =12a(24) =13a(25) =14a(26) =14a(27) =14a(28) =14a(29) =14