A010478 Decimal expansion of square root of 22.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons
• easy

Comments

Continued fraction expansion is 4 followed by {1, 2, 4, 2, 1, 8} repeated (A010126). - Harry J. Smith, Jun 03 2009

Examples

			4.690415759823429554565630113544466280588228353411737153605701891017024....
		

Links

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

Crossrefs

Cf. A010126 (continued fraction), A248250 (Egyptian fraction), A020779 (reciprocal).

Programs

Mathematica

RealDigits[N[Sqrt[22],200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 22 2011 *)

PARI

default(realprecision, 20080); x=sqrt(22); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010478.txt", n, " ", d));  \\ Harry J. Smith, Jun 03 2009