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A271574 Decimal expansion of Sum_{n>=0} 1/(n!)^3. 4

%I #7 Mar 06 2024 16:49:12

%S 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,

%T 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,

%U 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

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

%e 2.1297025489833064181345236105954134683192207470391693...

%p evalf(Sum(1/n!^3, n=0..infinity), 120); # _Vaclav Kotesovec_, Apr 10 2016

%t RealDigits[HypergeometricPFQ[{}, {1, 1}, 1], 10, 120][[1]]

%t RealDigits[Total[1/(Range[0,200]!)^3],10,120][[1]] (* _Harvey P. Dale_, Mar 06 2024 *)

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

%Y Cf. A001113, A070910.

%K nonn,cons

%O 1,1

%A _Vaclav Kotesovec_, Apr 10 2016

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)