Least term in period of continued fraction for sqrt(n) is 2.

Terms

a(0) =2a(1) =6a(2) =12a(3) =20a(4) =28a(5) =30a(6) =41a(7) =42a(8) =55a(9) =56a(10) =72a(11) =89a(12) =90a(13) =110a(14) =126a(15) =130a(16) =131a(17) =132a(18) =155a(19) =156a(20) =177a(21) =180a(22) =182a(23) =209a(24) =210a(25) =240a(26) =269a(27) =270a(28) =272a(29) =299