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 A246722 Decimal expansion of Hermite's constant gamma_7 = 2^(6/7). 1
 1, 8, 1, 1, 4, 4, 7, 3, 2, 8, 5, 2, 7, 8, 1, 3, 3, 4, 3, 1, 8, 8, 3, 4, 5, 7, 4, 6, 4, 3, 0, 2, 0, 6, 3, 7, 5, 4, 0, 0, 8, 9, 1, 7, 6, 2, 5, 1, 5, 8, 7, 4, 7, 1, 0, 2, 3, 7, 4, 1, 6, 2, 6, 2, 7, 6, 8, 8, 4, 4, 9, 3, 4, 6, 2, 7, 1, 2, 5, 6, 7, 3, 9, 0, 9, 5, 2, 8, 7, 8, 7, 7, 8, 2, 0, 7, 1, 5, 5, 7, 4, 4, 5 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Also seventh root of 64. - Alonso del Arte, Feb 07 2015 REFERENCES Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 8.7 Hermite's Constants, p. 507. LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 Steven R. Finch, Errata and Addenda to Mathematical Constants, arXiv:2001.00578 [math.HO], 2020, p. 62. FORMULA Equals Product_{k>=0} (1 + (-1)^k/(7*k + 1)). - Amiram Eldar, Jul 29 2020 EXAMPLE 1.81144732852781334318834574643020637540089176251587471... MATHEMATICA RealDigits[2^(6/7), 10, 103] // First PROG (PARI) sqrtn(64, 7) \\ Michel Marcus, Feb 08 2015 CROSSREFS Cf. A222071 (Hermite's delta_7), A011149, A005480. Sequence in context: A128881 A154015 A300727 * A197492 A153621 A159822 Adjacent sequences: A246719 A246720 A246721 * A246723 A246724 A246725 KEYWORD nonn,cons,easy AUTHOR Jean-François Alcover, Sep 02 2014 STATUS approved

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