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A292827
Decimal expansion of Product_{k>=1} (1 + exp(-Pi*(2*k-1)/2)).
5
1, 2, 1, 9, 2, 2, 4, 8, 0, 1, 9, 9, 8, 7, 7, 3, 5, 7, 7, 1, 7, 9, 4, 2, 7, 4, 8, 4, 3, 4, 9, 0, 2, 3, 2, 3, 5, 6, 3, 1, 8, 4, 4, 4, 9, 9, 7, 0, 0, 9, 1, 6, 8, 3, 8, 2, 7, 9, 9, 5, 2, 4, 8, 1, 6, 3, 0, 7, 8, 2, 2, 9, 7, 9, 9, 3, 8, 0, 2, 8, 4, 6, 2, 4, 9, 2, 4, 2, 8, 7, 7, 2, 8, 3, 1, 1, 6, 7, 4, 5, 0, 8, 3, 8, 7
OFFSET
1,2
FORMULA
Equals 2^(1/16) / (exp(Pi/48) * (sqrt(2)-1)^(1/4)).
Equals A292819 / A292820.
EXAMPLE
1.219224801998773577179427484349023235631844499700916838279952481630782...
MATHEMATICA
RealDigits[2^(1/16) / (E^(Pi/48) * (Sqrt[2]-1)^(1/4)), 10, 120][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vaclav Kotesovec, Sep 24 2017
STATUS
approved