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A033151 Continued fraction for Niven's constant. 4
1, 1, 2, 2, 1, 1, 4, 1, 1, 3, 4, 4, 8, 4, 1, 1, 2, 1, 1, 11, 1, 4, 2, 2, 1, 2, 1, 2, 2, 2, 1, 1, 1, 7, 14, 2, 1, 13, 2, 1, 6, 2, 3, 1, 1, 1, 5, 2, 2, 8, 29, 1, 6, 1, 18, 1, 3, 2, 1, 5, 1, 1, 1, 18, 1, 3, 1, 372, 3, 3, 1, 47, 2, 1, 6, 1, 5, 1, 4, 1, 2, 4, 2, 2, 1, 1, 2, 7, 1, 7, 1, 14, 6, 5, 1, 559, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..97.

I. Niven, Averages of Exponents in Factoring Integers, Proc. Amer. Math. Soc. 22, 356-360, 1969.

Eric Weisstein's World of Mathematics, Niven's Constant

G. Xiao, Contfrac

Index entries for continued fractions for constants

MATHEMATICA

rd[n_] := rd[n] = RealDigits[ N[1 + Sum[1 - 1/Zeta[j], {j, 2, 2^n}], 105]][[1]]; rd[n = 4]; While[rd[n] =!= rd[n - 1], n++]; Niven = FromDigits[{rd[n], 1}]; ContinuedFraction[Niven, 100] (* Jean-Fran├žois Alcover, Oct 30 2012 *)

CROSSREFS

Cf. A033150.

Sequence in context: A078692 A273432 A284343 * A046079 A319700 A279104

Adjacent sequences:  A033148 A033149 A033150 * A033152 A033153 A033154

KEYWORD

nonn,cofr

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified June 25 21:43 EDT 2019. Contains 324357 sequences. (Running on oeis4.)