login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031747 Least term in period of continued fraction for sqrt(n) is 69. 1
4763, 19048, 42855, 76184, 119035, 171408, 233303, 304720, 385659, 476120, 576103, 685608, 804635, 933184, 1071255, 1218848, 1375963, 1542600, 1718759, 1904440, 2099643, 2304368, 2518615, 2742384, 2975675, 3218488, 3470823, 3732680, 4004059 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

MATHEMATICA

cf69Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Min[ContinuedFraction[s][[2]]]]==69]; Select[Range[41*10^5], cf69Q] (* Harvey P. Dale, Jul 17 2017 *)

CROSSREFS

Sequence in context: A257763 A260293 A031567 * A125949 A237214 A204727

Adjacent sequences:  A031744 A031745 A031746 * A031748 A031749 A031750

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 12 11:55 EDT 2021. Contains 343821 sequences. (Running on oeis4.)