A010481 Decimal expansion of square root of 26.

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

Offset

1,1

Comments

Continued fraction expansion is 5 followed by {10} repeated. - Harry J. Smith, Jun 03 2009

In the Gaussian moat problem, a moat of width sqrt(26) exists. - Paul Muljadi, Jan 28 2011

Links

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

Ellen Gethner, Stan Wagon and Brian Wick, A stroll through the Gaussian primes, American Mathematical Monthly 105 (1998), 327-337.

Index entries for algebraic numbers, degree 2

Example

5.09901951359278483002822410902278198956377094609959640758497080442...

Mathematica

RealDigits[N[Sqrt[26], 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 22 2011 *)

Prog

(PARI)  default(realprecision, 20080); x=sqrt(26); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010481.txt", n, " ", d));  \\ Harry J. Smith, Jun 03 2009

Crossrefs

Cf. A040020 (continued fraction).

Sequence in context: A196820 A176325 A275792 * A347681 A374285 A291724

Adjacent sequences: A010478 A010479 A010480 * A010482 A010483 A010484

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved