Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19.

A031607

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19.

Terms

    a(0) =4538a(1) =4673a(2) =7477a(3) =7825a(4) =11785a(5) =16553a(6) =22129a(7) =22426a(8) =26533a(9) =26858a(10) =27514a(11) =28513a(12) =34217a(13) =40441a(14) =43705a(15) =48053a(16) =50258a(17) =52058a(18) =57269a(19) =57746a(20) =58706a(21) =59674a(22) =60161a(23) =61141a(24) =62129a(25) =62626a(26) =68329a(27) =72553a(28) =77017a(29) =78125

External references