Nearest integer to tan(n)^3.

Terms

a(0) =0a(1) =4a(2) =-10a(3) =0a(4) =2a(5) =-39a(6) =0a(7) =1a(8) =-314a(9) =0a(10) =0a(11) =-11535646a(12) =0a(13) =0a(14) =380a(15) =-1a(16) =0a(17) =43a(18) =-1a(19) =0a(20) =11a(21) =-4a(22) =0a(23) =4a(24) =-10a(25) =0a(26) =2a(27) =-35a(28) =0a(29) =1