Numerators of continued fraction convergents to sqrt(647).

Terms

a(0) =25a(1) =51a(2) =178a(3) =407a(4) =992a(5) =1399a(6) =2391a(7) =10963a(8) =276466a(9) =1116827a(10) =1393293a(11) =2510120a(12) =6413533a(13) =15337186a(14) =52425091a(15) =120187368a(16) =6061793491a(17) =12243774350a(18) =42793116541a(19) =97830007432a(20) =238453131405a(21) =336283138837