A271574 Decimal expansion of Sum_{n>=0} 1/(n!)^3.

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

Offset

1,1

Links

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

Example

2.1297025489833064181345236105954134683192207470391693...

Maple

evalf(Sum(1/n!^3, n=0..infinity), 120); # Vaclav Kotesovec, Apr 10 2016

Mathematica

RealDigits[HypergeometricPFQ[{}, {1, 1}, 1], 10, 120][[1]]
RealDigits[Total[1/(Range[0, 200]!)^3], 10, 120][[1]] (* Harvey P. Dale, Mar 06 2024 *)

Prog

(PARI) default(realprecision, 120); sumpos(n=0, 1/n!^3)

Crossrefs

Cf. A001113, A070910.

Sequence in context: A109529 A022694 A173159 * A274198 A002079 A006126

Adjacent sequences: A271571 A271572 A271573 * A271575 A271576 A271577

Keyword

nonn,cons

Author

Vaclav Kotesovec, Apr 10 2016

Status

approved