Denominators of continued fraction convergents to sqrt(639).

Terms

a(0) =1a(1) =3a(2) =4a(3) =7a(4) =18a(5) =79a(6) =334a(7) =413a(8) =1986a(9) =2399a(10) =11582a(11) =48727a(12) =109036a(13) =157763a(14) =266799a(15) =958160a(16) =48174799a(17) =145482557a(18) =193657356a(19) =339139913a(20) =871937182a(21) =3826888641a(22) =16179491746a(23) =20006380387a(24) =96205013294a(25) =116211393681a(26) =561050588018