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A013653 Period of continued fraction for sqrt(n) contains exactly two 1's and they are not consecutive. 0
14, 19, 22, 23, 33, 34, 45, 47, 52, 54, 59, 60, 62, 69, 70, 71, 77, 78, 79, 95, 96, 98, 107, 114, 117, 118, 119, 127, 138, 140, 141, 142, 149, 153, 154, 164, 165, 167, 178, 187, 188, 189, 192, 194, 202, 205, 206, 216, 218, 219, 220, 221, 222, 223, 234, 238, 239, 248, 250 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

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

LINKS

Table of n, a(n) for n=1..59.

CROSSREFS

Sequence in context: A248134 A013649 A013657 * A072124 A026287 A028396

Adjacent sequences:  A013650 A013651 A013652 * A013654 A013655 A013656

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from David W. Wilson

STATUS

approved

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Last modified August 3 08:10 EDT 2020. Contains 336197 sequences. (Running on oeis4.)