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Decimal expansion of Product_{k>=1} (1 + exp(-2*Pi*(2*k-1))).
5

%I #3 Sep 24 2017 09:05:34

%S 1,0,0,1,8,6,7,4,4,9,2,5,6,3,0,4,4,3,5,1,0,5,4,3,2,7,5,0,5,1,0,7,3,2,

%T 1,5,0,1,5,9,8,8,5,3,9,5,4,8,3,7,8,9,4,0,5,6,6,4,4,9,8,7,6,1,1,7,9,8,

%U 1,8,2,4,3,7,7,1,2,6,0,3,1,0,6,6,4,0,2,8,0,3,6,9,7,2,8,8,6,5,1,5,4,6,7,6,5

%N Decimal expansion of Product_{k>=1} (1 + exp(-2*Pi*(2*k-1))).

%F Equals 2^(1/16) / (exp(Pi/12) * (sqrt(2)-1)^(1/4)).

%F Equals A292821 / A292822.

%e 1.001867449256304435105432750510732150159885395483789405664498761179818...

%t RealDigits[2^(1/16) / (E^(Pi/12) * (Sqrt[2]-1)^(1/4)), 10, 120][[1]]

%Y Cf. A259149, A292821, A292825.

%Y Cf. A292827, A292828.

%K nonn,cons

%O 1,5

%A _Vaclav Kotesovec_, Sep 24 2017