A327558 Decimal expansion of Sum_{k>=1} 1/F(k)! where F(k) = A000045(k).

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

Offset

1,1

Links

Table of n, a(n) for n=1..114.

Math Stackexchange, Is the sum of the inverses of the factorials of Fibonacci numbers transcendental?, Jan 10 2021.

Example

2.6750248017478920256893763886446166202373715128...

Prog

(PARI) suminf(n=1, 1/fibonacci(n)!) \\ Michel Marcus, Sep 20 2019

Crossrefs

Cf. A000045, A079586, A084119, A105393.

Sequence in context: A021793 A365256 A377969 * A265180 A061352 A173991

Adjacent sequences: A327555 A327556 A327557 * A327559 A327560 A327561

Keyword

nonn,cons

Author

Steven Ricardo Villeda Marroquín, Sep 16 2019

Status

approved