Denominators of continued fraction convergents to sqrt(637).

Terms

a(0) =1a(1) =4a(2) =21a(3) =46a(4) =67a(5) =247a(6) =314a(7) =561a(8) =7046a(9) =113297a(10) =120343a(11) =353983a(12) =474326a(13) =7943199a(14) =95792714a(15) =103735913a(16) =199528627a(17) =702321794a(18) =901850421a(19) =2506022636a(20) =13431963601a(21) =56233877040