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 67.

A031655

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 67.

Terms

    a(0) =56218a(1) =91285a(2) =93106a(3) =138505a(4) =192013a(5) =253234a(6) =256261a(7) =325189a(8) =327473a(9) =328618a(10) =407405a(11) =409961a(12) =415097a(13) =498877a(14) =504541a(15) =507385a(16) =598058a(17) =604258a(18) =605813a(19) =702869a(20) =709589a(21) =711274a(22) =712961a(23) =719729a(24) =721426a(25) =825193a(26) =828829a(27) =949517a(28) =953417a(29) =957325

External references