Numerators of continued fraction convergents to sqrt(661).

Terms

a(0) =25a(1) =26a(2) =77a(3) =180a(4) =797a(5) =3368a(6) =54685a(7) =58053a(8) =577162a(9) =1212377a(10) =1789539a(11) =22686845a(12) =115223764a(13) =137910609a(14) =253134373a(15) =391044982a(16) =1035224337a(17) =1426269319a(18) =5314032294a(19) =6740301613a(20) =12054333907a(21) =42903303334