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A031569
Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 71.
0
5043, 5051, 5059, 5087, 5091, 5099, 5107, 5119, 5139, 5147, 5163, 5167, 5171, 5179, 5203, 5227, 5231, 5251, 5259, 5279, 5283, 5287, 5303, 5311, 5323, 5327, 20168, 20200, 20288, 20320, 20352, 20360, 20392, 20456, 20480, 20488, 20512, 20544, 20576, 20608
OFFSET
1,1
CROSSREFS
Sequence in context: A200730 A229674 A243133 * A031749 A229857 A155145
KEYWORD
nonn
STATUS
approved