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 A115754 Decimal expansion of sqrt(3/2). 7
 1, 2, 2, 4, 7, 4, 4, 8, 7, 1, 3, 9, 1, 5, 8, 9, 0, 4, 9, 0, 9, 8, 6, 4, 2, 0, 3, 7, 3, 5, 2, 9, 4, 5, 6, 9, 5, 9, 8, 2, 9, 7, 3, 7, 4, 0, 3, 2, 8, 3, 3, 5, 0, 6, 4, 2, 1, 6, 3, 4, 6, 2, 8, 3, 6, 2, 5, 4, 8, 0, 1, 8, 8, 7, 2, 8, 6, 5, 7, 5, 1, 3, 2, 6, 9, 9, 2, 9, 7, 1, 6, 5, 5, 2, 3, 2, 0, 1, 1 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Coordinate of a control point for a degree-5 integration formula for 7 points over the unit circle. [Stroud & Secrest] Also real and imaginary part of sqrt(-3i). - Alonso del Arte, Dec 11 2012 Area of the quadrilateral obtained when slicing a unit cube with a plane passing through opposite vertices and the middle of opposite edges. See CNRS link. - Michel Marcus, Mar 26 2016 LINKS Ana Rechtman, Mars 2016, 3e dÃ©fi, Images des MathÃ©matiques, CNRS, 2016. A. H. Stroud, D. Secrest, Approximate integration formulas for certain spherically symmetric regions, Math. Comp. 17 (82) (1963) 105 FORMULA Two times A187110. Equals Sum_{k>=0} binomial(1/2, k)/2^k. [Bruno Berselli, Sep 11 2015] EXAMPLE 1.2247448713915890490986420373529456959829737403283350642163... MATHEMATICA RealDigits[Sqrt[3/2], 10, 105][[1]] (* Alonso del Arte, Dec 11 2012 *) CROSSREFS Sequence in context: A120280 A212362 A209142 * A210600 A220308 A203975 Adjacent sequences:  A115751 A115752 A115753 * A115755 A115756 A115757 KEYWORD nonn,cons AUTHOR Eric Desbiaux, Jul 30 2008 STATUS approved

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Last modified November 16 08:56 EST 2018. Contains 317268 sequences. (Running on oeis4.)