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!)
A010515 Decimal expansion of square root of 62. 5
7, 8, 7, 4, 0, 0, 7, 8, 7, 4, 0, 1, 1, 8, 1, 1, 0, 1, 9, 6, 8, 5, 0, 3, 4, 4, 4, 8, 8, 1, 2, 0, 0, 7, 8, 6, 3, 6, 8, 1, 0, 8, 6, 1, 2, 2, 0, 2, 0, 8, 5, 3, 7, 9, 4, 5, 9, 8, 8, 4, 2, 5, 5, 0, 3, 1, 3, 7, 6, 0, 8, 4, 6, 8, 1, 7, 6, 9, 8, 0, 5, 6, 9, 2, 6, 1, 9, 1, 3, 5, 1, 2, 4, 8, 7, 4, 6, 8, 8, 9, 9, 2, 7, 4, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sqrt(62) = 787400 * Sum_{n>=0} (A001790(n)/2^A005187(floor(n/2)) * 10^(-6n-5)) where A001790(n) are numerators in expansion of 1/sqrt(1-x) and the denominators in expansion of 1/sqrt(1-x) are 2^A005187(n). 786400 = 62*12700, see A020819 (expansion of 1/sqrt(62)). - Gerald McGarvey, Jan 01 2005

Continued fraction expansion is 7 followed by {1, 6, 1, 14} repeated. - Harry J. Smith, Jun 07 2009

LINKS

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

EXAMPLE

7.874007874011811019685034448812007863681086122020853794598842550313760... - Harry J. Smith, Jun 07 2009

MATHEMATICA

RealDigits[N[62^(1/2), 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jan 22 2012 *)

PROG

(PARI) { default(realprecision, 20080); x=sqrt(62); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010515.txt", n, " ", d)); } \\ Harry J. Smith, Jun 07 2009

CROSSREFS

Cf. A001790, A005187, A020819.

Cf. A010146 Continued fraction. - Harry J. Smith, Jun 07 2009

Sequence in context: A193345 A197822 A055060 * A021131 A220610 A021931

Adjacent sequences:  A010512 A010513 A010514 * A010516 A010517 A010518

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

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 August 13 22:24 EDT 2020. Contains 336461 sequences. (Running on oeis4.)