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 A201994 Decimal expansion of zeta''(2), the second derivative of the Riemann zeta function at 2. 13
 1, 9, 8, 9, 2, 8, 0, 2, 3, 4, 2, 9, 8, 9, 0, 1, 0, 2, 3, 4, 2, 0, 8, 5, 8, 6, 8, 7, 4, 2, 1, 5, 1, 6, 3, 8, 1, 4, 9, 4, 4, 6, 0, 7, 7, 0, 7, 4, 2, 5, 0, 2, 7, 0, 9, 0, 7, 8, 1, 5, 3, 9, 9, 2, 9, 2, 3, 0, 2, 5, 9, 4, 9, 3, 6, 3, 2, 3, 5, 4, 0, 2, 1, 1, 2, 6, 6, 8, 8, 8, 3, 4, 9, 0, 3, 5, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA zeta''(2) = sum_{k>=1} (log (k)/k)^2. EXAMPLE Equals 1.9892802342989010234208586874215163814944... MAPLE evalf(Zeta(2, 2)) ; MATHEMATICA RealDigits[ Zeta''[2], 10, 97] // First (* Jean-François Alcover, Feb 20 2013 *) CROSSREFS Cf. A073002, A201995. Sequence in context: A157371 A245330 A269222 * A243277 A200003 A159590 Adjacent sequences:  A201991 A201992 A201993 * A201995 A201996 A201997 KEYWORD cons,nonn AUTHOR R. J. Mathar, Dec 07 2011 STATUS approved

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Last modified March 25 16:26 EDT 2019. Contains 321470 sequences. (Running on oeis4.)