A010475 Decimal expansion of square root of 19.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Continued fraction expansion is 4 followed by {2, 1, 3, 1, 2, 8} repeated. - Harry J. Smith, Jun 03 2009

Examples

			4.358898943540673552236981983859615659137003925232444936890344138159557....
		

Links

• Harry J. Smith, Table of n, a(n) for n = 1..20000
• Index entries for algebraic numbers, degree 2

Crossrefs

Cf. A010124 (continued fraction).

Programs

Mathematica

RealDigits[N[Sqrt[19],200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 21 2011 *)

PARI

default(realprecision, 20080); x=sqrt(19); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010475.txt", n, " ", d));  \\ Harry J. Smith, Jun 03 2009