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A114474 Number of decimal digits in the denominator of Zeta(10^n). 0
1, 5, 133, 2277, 32660, 426486, 5264705, 62646781 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..7.

J. Sondow and E. W. Weisstein, MathWorld: Riemann Zeta Function

MATHEMATICA

Table[ Floor[ Log[ 10, Denominator[ Zeta[ 10^n]]] + 1], {n, 0, 6}] (* Robert G. Wilson v, Dec 01 2005 *)

IntegerLength[Denominator[Zeta[10^Range[0, 7]]]] (* Harvey P. Dale, Aug 18 2016 *)

CROSSREFS

Cf. A002432.

Sequence in context: A152794 A053517 A296191 * A280305 A085506 A307084

Adjacent sequences:  A114471 A114472 A114473 * A114475 A114476 A114477

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein, Dec 01 2005

EXTENSIONS

a(7) from Vaclav Kotesovec, Mar 05 2016

STATUS

approved

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Last modified November 13 20:57 EST 2019. Contains 329106 sequences. (Running on oeis4.)