Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 81 ones.

Terms

a(0) =41827a(1) =59599a(2) =61771a(3) =62875a(4) =77851a(5) =114091a(6) =119695a(7) =129823a(8) =174031a(9) =177331a(10) =193483a(11) =211579a(12) =217663a(13) =230263a(14) =236567a(15) =237703a(16) =238067a(17) =248811a(18) =255547a(19) =280135a(20) =281695a(21) =285112a(22) =298915a(23) =307739a(24) =310991a(25) =314843a(26) =317531a(27) =317615a(28) =329203a(29) =335443