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A065010
Integers for which the periodic part of the continued fraction for the square root of n begins with 7.
0
51, 124, 200, 229, 329, 366, 447, 490, 535, 632, 683, 736, 792, 849, 908, 969, 1033, 1098, 1165, 1234, 1235, 1306, 1379, 1454, 1531, 1532, 1611, 1692, 1775, 1776, 1860, 1861, 1948, 2037, 2128, 2129, 2221, 2222, 2317, 2414, 2415, 2513, 2514, 2614, 2615
OFFSET
1,1
EXAMPLE
The continued fraction for the square root of 84 is 7, {7, 14}.
MATHEMATICA
Select[ Range[3000], First[ Last[ ContinuedFraction[ Sqrt[ # ]]]] == 7 & ]
CROSSREFS
Cf. A065005.
Sequence in context: A068564 A063314 A129298 * A365834 A097644 A353987
KEYWORD
easy,nonn
AUTHOR
Robert G. Wilson v, Nov 01 2001
STATUS
approved