The least number s > 1 having exactly n fives in the periodic part of the continued fraction of sqrt(s).

A206585

The least number s > 1 having exactly n fives in the periodic part of the continued fraction of sqrt(s).

Terms

    a(0) =2a(1) =27a(2) =67a(3) =664a(4) =331a(5) =6487a(6) =1237a(7) =6019a(8) =1999a(9) =6331a(10) =3964a(11) =23983a(12) =4204a(13) =22075a(14) =9739a(15) =64639a(16) =10684a(17) =26419a(18) =17971a(19) =80719a(20) =22969a(21) =140971a(22) =28414a(23) =310759a(24) =34189a(25) =290779a(26) =39181a(27) =228691a(28) =46099a(29) =261691

External references