A371504 Decimal expansion of Sum_{k>=0} (-1)^k / (k^2 - k + 1)!.

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

Offset

0,2

Links

Table of n, a(n) for n=0..85.

Formula

Equals 1 - A371502. - Hugo Pfoertner, Apr 17 2024

Example

0.166468254128844406602611458899...

Mathematica

s = N[Sum[(-1)^k/((k^2 - k + 1)!), {k, 0, Infinity}], 120]
First[RealDigits[s]]

Crossrefs

Cf. A371502.

Sequence in context: A255438 A200491 A245297 * A002421 A360828 A209938

Adjacent sequences: A371501 A371502 A371503 * A371505 A371506 A371507

Keyword

nonn,cons

Author

Clark Kimberling, Apr 10 2024

Status

approved