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A059101 Number of terms of the fractional part of A001203 for which the geometric mean produces increasingly better approximations to Khinchin's constant. +0
1
1, 3, 7, 8, 9, 10, 11, 15, 16, 17, 97, 100, 103, 117, 976, 32307, 32760, 32787, 60508, 60601, 60663, 187154, 230084, 1120375, 1146529, 2211732, 4497058 (list; graph; listen)
OFFSET

1,2

COMMENT

Next term > 180000000.

LINKS

H. Havermann, Simple Continued Fraction for Pi

FORMULA

p = Rest[{A001203}]; q = N[1, 100]; r = p[[1]] + 1; t = {}; Do[q = q*p[[i]]; g = q^(1/i) - Khinchin; If[Abs[g] < r, r = Abs[g]; t = Append[t, i]], {i, 1, Length[p]}]; t

EXAMPLE

The geometric mean of 17 terms (Khinchin + 0.00752006) is not bettered until we calculate the geometric mean of 97 terms (Khinchin - 0.00326655).

CROSSREFS

Cf. A001203, A048613.

Sequence in context: A064540 A103560 A011398 this_sequence A091679 A116034 A122987

Adjacent sequences: A059098 A059099 A059100 this_sequence A059102 A059103 A059104

KEYWORD

cofr,nonn

AUTHOR

Hans Havermann (pxp(AT)rogers.com), Feb 13 2001

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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