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A031659
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 71.
0
62549, 102481, 103765, 104410, 153785, 213613, 284314, 289669, 460045, 465485, 556957, 565945, 568957, 668018, 669653, 676213, 684458, 789169, 790946, 794506, 798074, 799861, 803441, 807029, 808826, 1061741, 1065865, 1078285
OFFSET
1,1
CROSSREFS
Sequence in context: A203046 A180163 A180202 * A257150 A257157 A254739
KEYWORD
nonn
EXTENSIONS
First term 5042 removed by Georg Fischer, Jun 16 2019
STATUS
approved