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A118858 Decimal expansion of log(2)/Pi^2. 7
0, 7, 0, 2, 3, 0, 4, 9, 2, 7, 7, 2, 6, 8, 2, 8, 7, 6, 4, 0, 8, 9, 3, 8, 5, 9, 9, 4, 9, 6, 9, 9, 7, 0, 0, 9, 6, 3, 2, 8, 7, 6, 5, 3, 2, 4, 4, 3, 2, 6, 2, 5, 4, 1, 3, 7, 7, 4, 3, 4, 3, 7, 8, 2, 2, 8, 2, 4, 9, 6, 4, 1, 3, 3, 6, 9, 6, 8, 5, 3, 4, 0, 1, 4, 2, 0, 1, 6, 9, 3, 5, 8, 0, 7, 3, 3, 4, 0, 0, 9, 4, 3, 2, 7, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
Derrick Norman Lehmer, Asymptotic Evaluation of Certain Totient Sums, American Journal of Mathematics, Vol. 22, No. 4 (1900), pp. 293-335.
Eric Weisstein's World of Mathematics, Primitive Pythagorean Triple.
FORMULA
Equals lim_{n->oo} A328499(n)/n. - Amiram Eldar, Jun 25 2021
Equals Integral_{z>=0} z*sech(Pi*z)^2. - Peter Luschny, Aug 03 2021
EXAMPLE
0.07023049277268287640...
MATHEMATICA
RealDigits[Log[2]/Pi^2, 10, 100][[1]] (* Amiram Eldar, Jun 25 2021 *)
PROG
(PARI) log(2)/Pi^2 \\ Michel Marcus, Jun 25 2021
CROSSREFS
Sequence in context: A287697 A335953 A227958 * A261167 A197014 A244979
KEYWORD
nonn,cons,easy
AUTHOR
Eric W. Weisstein, May 02 2006
STATUS
approved

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)