a(n) = n - 24.

Terms

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