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A031621
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 33.
0
2509, 13738, 23185, 61729, 64234, 79813, 80378, 81514, 83233, 98957, 101485, 102761, 147218, 150298, 151073, 152629, 171194, 172021, 175349, 176186, 177866, 178709, 180401, 205033, 231241, 233165, 235097, 238985, 263105, 265157, 267217
OFFSET
1,1
CROSSREFS
Subsequence of A003814.
Sequence in context: A251858 A251854 A203055 * A212400 A215197 A250694
KEYWORD
nonn
EXTENSIONS
First term 1090 removed by Georg Fischer, Jun 16 2019
STATUS
approved