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A041047 Denominators of continued fraction convergents to sqrt(29). 10
1, 2, 3, 5, 13, 135, 283, 418, 701, 1820, 18901, 39622, 58523, 98145, 254813, 2646275, 5547363, 8193638, 13741001, 35675640, 370497401, 776670442, 1147167843, 1923838285, 4994844413, 51872282415 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Contribution from Johannes W. Meijer (meijgia(AT)hotmail.com), Jun 12 2010: (Start)

The a(n) terms of this sequence can be constructed with the terms of sequence A052918.

For the terms of the periodical sequence of the continued fraction for sqrt(29) see A010128. We observe that its period is five. The decimal expansion of sqrt(29) is A010484.

(End)

FORMULA

Contribution from Johannes W. Meijer (meijgia(AT)hotmail.com), Jun 12 2010: (Start)

a(5*n) = A052918(3*n), a(5*n+1) = (A052918(3*n+1) - A052918(3*n))/2, a(5*n+2) = (A052918(3*n+1) + A052918(3*n))/2, a(5*n+3) = A052918(3*n+1) and a(5*n+4) = A052918(3*n+2)/2.

(End)

MATHEMATICA

Table[Denominator[FromContinuedFraction[ContinuedFraction[Sqrt[29], n]]], {n, 1, 50}] (*From Vladimir Joseph Stephan Orlovsky, Mar 18 2011*)

CROSSREFS

Cf. A041046.

Contribution from Johannes W. Meijer (meijgia(AT)hotmail.com), Jun 12 2010: (Start)

Cf. A041019, A041047, A041091, A041151, A041227, A041319, A041427 and A041551.

(End)

Sequence in context: A139095 A005478 A117740 * A120494 A164825 A038601

Adjacent sequences:  A041044 A041045 A041046 * A041048 A041049 A041050

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 14 01:35 EST 2012. Contains 205567 sequences.