Denominators of continued fraction convergents to sqrt(660).

Terms

a(0) =1a(1) =1a(2) =3a(3) =13a(4) =29a(5) =42a(6) =2129a(7) =2171a(8) =6471a(9) =28055a(10) =62581a(11) =90636a(12) =4594381a(13) =4685017a(14) =13964415a(15) =60542677a(16) =135049769a(17) =195592446a(18) =9914672069a(19) =10110264515a(20) =30135201099a(21) =130651068911a(22) =291437338921a(23) =422088407832