Sum of all terms except last in period of continued fraction for sqrt(n).

Terms

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