A010542 Decimal expansion of square root of 91.

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

Offset

1,1

Comments

Continued fraction expansion is 9 followed by {1, 1, 5, 1, 5, 1, 1, 18} repeated. - Harry J. Smith, Jun 11 2009

Links

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

Example

9.53939201416945649152621586023226540254623... - Harry J. Smith, Jun 11 2009

Mathematica

RealDigits[N[Sqrt[91], 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 04 2012 *)

Prog

(PARI) { default(realprecision, 20080); x=sqrt(91); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010542.txt", n, " ", d)); } \\ Harry J. Smith, Jun 11 2009
(Python)
from math import isqrt
def aupton(nn): return list(map(int, str(isqrt(91 * 10**(2*nn)))))[:nn]
print(aupton(100)) # Michael S. Branicky, Sep 05 2021

Crossrefs

Cf. A010162 (continued fraction). - Harry J. Smith, Jun 11 2009

Sequence in context: A200483 A057888 A182125 * A013678 A336334 A139604

Adjacent sequences: A010539 A010540 A010541 * A010543 A010544 A010545

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved