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 A225357 Decimal expansion of (4/7)*(43/57)^(4/3). 1
 3, 9, 2, 4, 2, 2, 0, 6, 4, 1, 6, 0, 8, 3, 2, 7, 3, 2, 3, 4, 0, 8, 7, 9, 4, 2, 0, 3, 6, 1, 2, 6, 4, 4, 4, 1, 3, 7, 8, 2, 4, 0, 8, 8, 5, 5, 1, 1, 1, 3, 3, 9, 2, 5, 6, 2, 8, 4, 8, 8, 6, 5, 4, 9, 9, 5, 4, 8, 1, 9, 9, 0, 2, 7, 3, 3, 1, 4, 8, 7, 2, 7, 0, 0, 1, 6, 0, 8, 5, 8, 7, 3, 5, 2, 9, 8, 5, 0, 1, 0, 6, 9, 3, 6, 2 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Also decimal expansion of 172*(43/57)^(1/3)/399. Steven Weinberg suggested that the contribution from Goldstone bosons to the effective number of neutrino species present in the era before recombination would be (4/7)*(43/57)^(4/3). LINKS Steven Weinberg, Goldstone bosons as fractional cosmic neutrinos EXAMPLE 0.3924220641608327323408794203612644413782408855111339... MATHEMATICA RealDigits[(4/7)*(43/57)^(4/3), 10, 110] (* T. D. Noe, Jun 03 2013 *) CROSSREFS Cf. A111728, A225359. Sequence in context: A194807 A114875 A275371 * A201664 A103824 A155080 Adjacent sequences:  A225354 A225355 A225356 * A225358 A225359 A225360 KEYWORD nonn,cons AUTHOR Omar E. Pol, May 28 2013 STATUS approved

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Last modified April 10 18:17 EDT 2021. Contains 342853 sequences. (Running on oeis4.)