a(n) = n-8.

Terms

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