A292820 - OEIS

A292820

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

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

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..105.

FORMULA

Equals exp(Pi/24) / 2^(1/8).

Equals A259149 / A259148.

EXAMPLE

1.045250214354711942547595012203562068003424782155586915500520985257117...

MATHEMATICA

RealDigits[E^(Pi/24) / 2^(1/8), 10, 120][[1]]