A347417 Decimal expansion of Product_{k>=1} (1 + exp(-k)).

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

Offset

1,2

Links

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

Example

1.67792868498935419743907236983684684682083...

Maple

evalf(limit(product(1+1/exp(k), k=1..t), t=infinity), 120);

Mathematica

Product[1+Exp[-k], {k, 1, Infinity}]

Prog

(PARI) prodinf(k=1, 1+exp(-k))

Crossrefs

Cf. A001113, A000149.

Sequence in context: A256425 A021600 A205867 * A046256 A004495 A301863

Adjacent sequences: A347414 A347415 A347416 * A347418 A347419 A347420

Keyword

nonn,cons

Author

Christoph B. Kassir, Aug 31 2021

Status

approved