A010490 - OEIS

A010490

Decimal expansion of square root of 35.

5, 9, 1, 6, 0, 7, 9, 7, 8, 3, 0, 9, 9, 6, 1, 6, 0, 4, 2, 5, 6, 7, 3, 2, 8, 2, 9, 1, 5, 6, 1, 6, 1, 7, 0, 4, 8, 4, 1, 5, 5, 0, 1, 2, 3, 0, 7, 9, 4, 3, 4, 0, 3, 2, 2, 8, 7, 9, 7, 1, 9, 6, 6, 9, 1, 4, 2, 8, 2, 2, 4, 5, 9, 1, 0, 5, 6, 5, 3, 0, 3, 6, 7, 6, 5, 7, 5, 2, 5, 2, 7, 1, 8, 3, 1, 0, 9, 1, 7

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OFFSET

1,1

COMMENTS

Continued fraction expansion is 5 followed by {1, 10} repeated. - Harry J. Smith, Jun 04 2009

This is the length of the long leg of a right triangle with hypotenuse 6 and short leg 1. So this is half the length of the longest line segment that can be drawn within a circular ring with radii 6 and 1. - Michel Marcus, Jun 20 2020

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..20000

Wikipedia, Annulus (mathematics).

Index entries for algebraic numbers, degree 2

EXAMPLE

5.916079783099616042567328291561617048415501230794340322879719669142822...

MATHEMATICA

RealDigits[N[Sqrt[35], 105]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 20 2011 *)

PROG

(PARI) default(realprecision, 20080); x=sqrt(35); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010490.txt", n, " ", d)); \\ Harry J. Smith, Jun 04 2009

CROSSREFS

Cf. A040029 (continued fraction), A010606 (cube root of 35).

Sequence in context: A231532 A086201 A362742 * A021173 A266553 A306980

Adjacent sequences: A010487 A010488 A010489 * A010491 A010492 A010493

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

STATUS

approved