a(n) = n-33.

Terms

a(0) =-33a(1) =-32a(2) =-31a(3) =-30a(4) =-29a(5) =-28a(6) =-27a(7) =-26a(8) =-25a(9) =-24a(10) =-23a(11) =-22a(12) =-21a(13) =-20a(14) =-19a(15) =-18a(16) =-17a(17) =-16a(18) =-15a(19) =-14a(20) =-13a(21) =-12a(22) =-11a(23) =-10a(24) =-9a(25) =-8a(26) =-7a(27) =-6a(28) =-5a(29) =-4