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A214367 Denominators of continued fraction convergents to ( sqrt(4*sqrt(3)-3) - 1 )/4. 1
1, 4, 53, 57, 110, 167, 277, 444, 721, 119409, 120130, 239539, 1557364, 1796903, 3354267, 15213971, 109852064, 2871367635, 2981219699, 14796246431, 17777466130, 50351178691, 68128644821, 186608468333, 254737113154, 696082694641, 950819807795, 2597722310231, 13939431358950 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This constant arises as the edge-length of one of the pieces in the classical 4-piece dissection of a square to an equilateral triangle (see references in A110312).

LINKS

Table of n, a(n) for n=1..29.

MATHEMATICA

Denominator[Convergents[(Sqrt[4 Sqrt[3] - 3] - 1)/4, 50]]

CROSSREFS

Cf. A224224, A110312.

Sequence in context: A288490 A219160 A111034 * A241872 A109801 A099340

Adjacent sequences:  A214364 A214365 A214366 * A214368 A214369 A214370

KEYWORD

nonn,easy,frac

AUTHOR

Jean-Claude Babois, Feb 20 2013

EXTENSIONS

Edited by N. J. A. Sloane, Apr 08 2013 at the request of Jean-Claude Babois

Mathematica code corrected to agree with terms by Ray Chandler, Mar 13 2017

STATUS

approved

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Last modified October 27 09:55 EDT 2021. Contains 348274 sequences. (Running on oeis4.)