Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #16 May 18 2024 23:43:37
%S 8,3,0,7,7,4,7,8,1,2,3,6,4,7,7,9,9,8,2,1,8,3,9,1,4,9,8,3,0,6,0,7,3,3,
%T 2,7,8,8,8,3,5,8,5,3,5,9,6,3,0,2,9,5,1,4,0,0,7,8,5,7,6,9,1,6,0,1,0,1,
%U 3,8,7,3,9,4,1,0,1,0,5,4,2,3,4,0,2,1,6,6,1,6
%N Decimal expansion of (25/297)*Pi^2.
%H Paolo Xausa, <a href="/A372585/b372585.txt">Table of n, a(n) for n = 0..10000</a>
%H J. M. Borwein and P. B. Borwein, <a href="https://doi.org/10.2307/2324993">Strange Series and High Precision Fraud</a>, The American Mathematical Monthly, Vol. 99, No. 7 (1992), pp. 622-640.
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F Equals Sum_{k >= 1} A196564(k)*(1/k^2 - 1/(k+1)^2). See Sum 3 in Borwein and Borwein (1992), p. 622.
%e 0.8307747812364779982183914983060733278883585359630295140...
%t First[RealDigits[25*Pi^2/297, 10, 100]]
%Y Cf. A000796, A002388, A196564, A372609.
%K nonn,cons
%O 0,1
%A _Paolo Xausa_, May 06 2024