A010521 Decimal expansion of square root of 69.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Continued fraction expansion is 8 followed by {3, 3, 1, 4, 1, 3, 3, 16} repeated. - Harry J. Smith, Jun 08 2009

Examples

			8.306623862918074852584262744907492010232214248955655779432188369037585...
		

Links

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

Crossrefs

Cf. A010148 Continued fraction.

Programs

Mathematica

RealDigits[N[69^(1/2),200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jan 22 2012 *)

PARI

{ default(realprecision, 20080); x=sqrt(69); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010521.txt", n, " ", d)); } \\ Harry J. Smith, Jun 08 2009