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 A020805 Decimal expansion of 1/sqrt(48). 3
 1, 4, 4, 3, 3, 7, 5, 6, 7, 2, 9, 7, 4, 0, 6, 4, 4, 1, 1, 2, 7, 2, 8, 7, 1, 9, 5, 1, 2, 5, 4, 8, 9, 3, 6, 3, 9, 1, 1, 9, 0, 0, 4, 3, 7, 8, 1, 7, 5, 3, 1, 7, 1, 9, 0, 0, 4, 6, 5, 0, 5, 8, 1, 6, 2, 0, 9, 9, 4, 4, 1, 8, 0, 7, 5, 7, 3, 3, 3, 3, 6, 4, 2, 3, 4, 2, 8, 8, 4, 8, 8, 9, 6, 4, 3, 7, 3, 8, 1 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Or 1/(4 sqrt(3)), which should look familiar to anyone who has studied Ramanujan's approximation for the partition numbers (see Conway and Guy). - Alonso del Arte, May 19 2011 This constant is the ratio of the area (A) to the perimeter (P) of an equilateral triangle with unit side, A/P = 1/(4 sqrt(3)). - José de Jesús Camacho Medina, Feb 09 2018 REFERENCES J. H. Conway and R. K. Guy, The Book of Numbers, Copernicus Press, NY, 1996, p. 95. LINKS Ivan Panchenko, Table of n, a(n) for n = 0..1000 Steven Finch, Integer Partitions, September 22, 2004. [Cached copy, with permission of the author] EXAMPLE 0.1443375672974... MATHEMATICA RealDigits[1/Sqrt[48], 10, 100][[1]] (* Alonso del Arte, May 19 2011 *) PROG (PARI) sqrt(1/48) CROSSREFS Sequence in context: A344894 A305403 A344895 * A200587 A307836 A106147 Adjacent sequences:  A020802 A020803 A020804 * A020806 A020807 A020808 KEYWORD nonn,cons,easy AUTHOR STATUS approved

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Last modified August 1 03:05 EDT 2021. Contains 346379 sequences. (Running on oeis4.)