A010549 Decimal expansion of square root of 98.

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

Offset

1,1

Comments

Continued fraction expansion is 9 followed by {1, 8, 1, 18} repeated. - Harry J. Smith, Jun 12 2009

7*2^(1/2) = sqrt(98) is also the maximum width of the arms of the cellular automaton described in A294020. - Omar E. Pol, Oct 29 2017

Links

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

Example

9.899494936611665341611821069467886549987703127638636512236758165935127... - Harry J. Smith, Jun 12 2009

Mathematica

RealDigits[N[Sqrt[98], 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 05 2012 *)
RealDigits[Sqrt[98], 10, 120][[1]] (* Harvey P. Dale, May 21 2023 *)

Prog

(PARI) { default(realprecision, 20080); x=sqrt(98); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010549.txt", n, " ", d)); } \\ Harry J. Smith, Jun 12 2009

Crossrefs

Cf. A010169 Continued fraction. - Harry J. Smith, Jun 12 2009

Sequence in context: A116695 A109940 A275106 * A266554 A046267 A343765

Adjacent sequences: A010546 A010547 A010548 * A010550 A010551 A010552

Keyword

nonn,cons

Author

N. J. A. Sloane

Extensions

Final digits of sequence corrected using the b-file. - N. J. A. Sloane, Aug 30 2009

Status

approved