a(n) = 16-n.

Terms

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