Numerators of continued fraction convergents to sqrt(980).

Terms

a(0) =31a(1) =94a(2) =313a(3) =407a(4) =720a(5) =1847a(6) =2567a(7) =4414a(8) =15809a(9) =51841a(10) =3229951a(11) =9741694a(12) =32455033a(13) =42196727a(14) =74651760a(15) =191500247a(16) =266152007a(17) =457652254a(18) =1639108769a(19) =5374978561a(20) =334887779551