Denominators of continued fraction convergents to sqrt(645).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =63a(5) =635a(6) =7683a(7) =8318a(8) =16001a(9) =40320a(10) =2032001a(11) =4104322a(12) =6136323a(13) =10240645a(14) =129024063a(15) =1300481275a(16) =15734799363a(17) =17035280638a(18) =32770080001a(19) =82575440640