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A031660
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 72.
0
33149, 64058, 65074, 106357, 221069, 222953, 292906, 293989, 299434, 376058, 378514, 380978, 382213, 470957, 473705, 578041, 692753, 694418, 697754, 701098, 702773, 812426, 817841, 821461, 823274, 825089, 826906, 832369, 965053, 1094957
OFFSET
1,1
CROSSREFS
Sequence in context: A062682 A094889 A332200 * A252291 A203619 A170798
KEYWORD
nonn
EXTENSIONS
First term 5185 removed by Georg Fischer, Jun 16 2019
STATUS
approved