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A013651 Period of continued fraction for sqrt(n) contains at least two 1's. 0
7, 13, 14, 19, 21, 22, 23, 29, 31, 32, 33, 34, 43, 44, 45, 46, 47, 52, 53, 54, 57, 58, 59, 60, 61, 62, 67, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 85, 86, 88, 91, 92, 93, 94, 95, 96, 97, 98 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Kenneth H. Rosen, Elementary Number Theory and Its Applications, Addison-Wesley, 1984, page 426 (but beware of errors!).

CROSSREFS

Sequence in context: A204713 A194408 A057930 * A050931 A072864 A120100

Adjacent sequences:  A013648 A013649 A013650 * A013652 A013653 A013654

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.