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A158384
Positions of Pell numbers in the sequence of Markoff numbers (A002559).
2
1, 3, 5, 8, 13, 18, 25, 33, 41, 52, 64, 75, 90, 104, 119, 137, 157, 174, 193, 214, 236, 260, 289, 312, 340, 369, 396, 426, 458, 487, 523, 560, 596, 631, 671, 708, 751, 794, 835, 879, 924, 968, 1019, 1066, 1116, 1165, 1218, 1269, 1322, 1377, 1430, 1488, 1551
OFFSET
1,2
COMMENTS
Only the odd-indexed Pell numbers (A001653) appear in the Markoff sequence. The n-th term is about 0.5602*n^2.
CROSSREFS
Cf. A158381.
Sequence in context: A310035 A310036 A265046 * A053651 A175388 A310037
KEYWORD
nonn
AUTHOR
T. D. Noe, Mar 19 2009
STATUS
approved