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%I #13 Nov 08 2018 08:56:18
%S 3,9,5,6,2,2,3,9,8,1,3,1,1,8,9,0,2,2,1,5,8,1,5,8,2,6,0,6,0,0,2,5,3,8,
%T 8,3,1,7,5,6,7,3,4,0,8,2,9,1,2,8,5,6,3,6,1,7,7,2,7,8,3,1,3,4,7,4,4,5,
%U 4,6,5,2,8,1,9,7,9,1,5
%N Decimal expansion of (1/3)*Pi^2 + 2*gamma^2.
%F Equals A195055 + 2*A155969.
%F The Engel expansion starts: 1, 1, 1, 2, 2, 2, 2, 4, 6, 6, 8, 9, 12, ...
%e Equals 3.9562239813118902215815826060025388317567340829128563617727831...
%t RealDigits[(1/3) Pi^2 + 2 EulerGamma^2, 10, 130] [[1]]
%o (PARI) (1/3)*Pi^2 + 2*Euler^2 \\ _Felix Fröhlich_, Nov 07 2018
%Y Cf. A195055, A155969.
%K nonn,cons
%O 1,1
%A _Peter Luschny_, Nov 07 2018