A010478 - OEIS

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

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

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

LINKS

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

Index entries for algebraic numbers, degree 2

EXAMPLE

4.690415759823429554565630113544466280588228353411737153605701891017024....

MATHEMATICA

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

PROG

(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

CROSSREFS

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

Sequence in context: A228586 A200107 A198733 * A106146 A154521 A129112

Adjacent sequences: A010475 A010476 A010477 * A010479 A010480 A010481

KEYWORD

nonn,cons,easy

AUTHOR

N. J. A. Sloane

STATUS

approved