A010506 Decimal expansion of square root of 53.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Continued fraction expansion is 7 followed by {3, 1, 1, 3, 14} repeated. - Harry J. Smith, Jun 06 2009

Examples

			7.280109889280518271097302491527032793777669682576477438378181791284115....
		

Links

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

Crossrefs

Cf. A010139 (continued fraction).

Programs

Mathematica

RealDigits[N[Sqrt[53],200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 24 2011 *)

PARI

default(realprecision, 20080); x=sqrt(53); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010506.txt", n, " ", d));  \\ Harry J. Smith, Jun 06 2009