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 A021016 Decimal expansion of 1/12. 5
 0, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Multiplied by -1, this is zeta(-1) or zeta(-13), with zeta being the Riemann zeta function. Divided by 10, this is zeta(-3). - Alonso del Arte, Jan 05 2011 Multiplied by 10, this is 5/6, the resistance in ohm between opposite vertices of a cubical network when each edge has a resistance of 1 ohm. - Michel Marcus, Sep 02 2015 The variance of a continuous uniform distribution U(a,b) is (1/12)(b-a)^2. - Jean-François Alcover, May 19 2016 REFERENCES L. B. W. Jolley, Summation of series, Dover Publications Inc. (New York), 1961, p. 40 (series n. 209) and p. 44 (series n. 239). LINKS Martin Gardner, The Five Platonic Solids, Mathematical Puzzles & Diversions. FORMULA Equals 1/(1*3*5) + 1/(3*5*7) + 1/(5*7*9) + 1/(7*9*11) + ... = sum(i >= 0, 1/((2i+1)*(2i+3)*(2i+5)) ), see Jolley in References. - Bruno Berselli, Mar 21 2014 Equals 1/(2*3*4) + 1/(3*4*5) + 1/(4*5*6) + 1/(5*6*7) + ... = sum(i > 0, 1/((i+1)*(i+2)*(i+3)) ). See Jolley in References, p. 48 (sum obtained from the series 268, case t = 2). - Bruno Berselli, Mar 29 2014 EXAMPLE 0.083333333333333333333333333333333333333333333333333333333333333333... MATHEMATICA RealDigits[1/12, 10, 100, -1][[1]] (* Bruno Berselli, Mar 21 2014 *) PROG (PARI) 1/12. \\ Michel Marcus, Mar 11 2018 CROSSREFS Cf. A005408 (odd numbers). Sequence in context: A010148 A246822 A168356 * A269296 A200230 A069995 Adjacent sequences:  A021013 A021014 A021015 * A021017 A021018 A021019 KEYWORD nonn,cons,easy AUTHOR STATUS approved

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Last modified January 21 19:52 EST 2019. Contains 319350 sequences. (Running on oeis4.)