OFFSET
1,1
REFERENCES
C. F. Gauss, Disquisitiones Arithmeticae, Yale, 1965; see p. 462.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
EXAMPLE
2.3458847616346386441201700354025004705099667108327095807040...
MATHEMATICA
RealDigits[(2Pi^2)/(7Zeta[3]), 10, 120][[1]] (* Harvey P. Dale, Nov 16 2014 *)
PROG
(PARI) 2*Pi^2/7/zeta(3) \\ Charles R Greathouse IV, Mar 25 2014
CROSSREFS
KEYWORD
cons,nonn
AUTHOR
N. J. A. Sloane, Feb 19 2011
STATUS
approved