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 A165952 Decimal expansion of 2sqrt(3)/(3Pi). 6
 3, 6, 7, 5, 5, 2, 5, 9, 6, 9, 4, 7, 8, 6, 1, 3, 6, 6, 3, 4, 0, 8, 8, 4, 3, 3, 2, 2, 0, 8, 6, 4, 6, 2, 9, 4, 2, 6, 4, 9, 2, 4, 3, 2, 0, 2, 4, 4, 4, 2, 7, 1, 0, 1, 8, 6, 6, 2, 4, 4, 0, 1, 3, 5, 2, 7, 3, 5, 3, 5, 3, 5, 6, 4, 6, 1, 7, 9, 8, 6, 3, 2, 2, 6, 9, 2, 0, 0, 1, 9, 2, 1, 5, 4, 4, 7, 2, 5, 9, 4, 7, 1, 7, 9, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS The ratio of the volume of a cube to the volume of the circumscribed sphere (which has circumradius a*sqrt(3)/2 = a*A010527, where a is the cube's edge length; see MathWorld link). For similar ratios for other Platonic solids, see A165922, A049541, A165953, and A165954. A063723 shows the order of these by size. LINKS Weisstein, Eric W., "Cube." FORMULA 2sqrt(3)/(3Pi) = 2*A002194/(3*A000796) = 3*A165922 = (2sqrt(3)/3)*A049541 = 10*A020832*A049541 = 2*A020760*A049541. EXAMPLE 0.3675525969478613663408843322086462942649243202444271018662440135273535356... MATHEMATICA RealDigits[(2*Sqrt[3])/(3Pi), 10, 120][[1]] (* Harvey P. Dale, Oct 08 2012 *) PROG (PARI) 2*sqrt(3)/(3*Pi) CROSSREFS Cf. A000796, A002194, A165922, A049541, A165953, A165954, A063723, A020760, A020832. Sequence in context: A117361 A228787 A245220 * A156648 A278688 A016616 Adjacent sequences:  A165949 A165950 A165951 * A165953 A165954 A165955 KEYWORD cons,nonn AUTHOR Rick L. Shepherd, Oct 02 2009 STATUS approved

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Last modified December 19 02:36 EST 2018. Contains 318245 sequences. (Running on oeis4.)