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A346585 Decimal expansion of Pi^3 / (18 * sqrt(3)). 4
9, 9, 4, 5, 2, 6, 7, 8, 8, 2, 1, 8, 8, 3, 9, 8, 3, 8, 8, 3, 5, 9, 4, 0, 1, 5, 6, 4, 7, 9, 8, 8, 8, 2, 8, 3, 7, 1, 6, 4, 3, 9, 4, 5, 9, 3, 8, 2, 3, 6, 6, 3, 0, 1, 6, 3, 0, 4, 1, 0, 8, 4, 1, 5, 9, 2, 7, 5, 5, 1, 2, 5, 4, 1, 2, 4, 8, 8, 5, 8, 5, 3, 9, 3, 4, 0, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET
0,1
REFERENCES
L. B. W. Jolley, Summation of Series, Dover, 1961, Eq. (314).
LINKS
Michael I. Shamos, Shamos's catalog of the real numbers (2011).
FORMULA
Equals Pi^3 / (2! * 3^2 * sqrt(3)).
Equals 1 + Sum_{k>=1} ( 1/(6*k+1)^3 - 1/(6*k-1)^3 ).
EXAMPLE
0.99452678821883983883594015647988828371...
MATHEMATICA
First[RealDigits[N[Pi^3 / (2! * 3^2 * Sqrt[3]), 88]]] (* Stefano Spezia, Jul 24 2021 *)
CROSSREFS
Sequence in context: A249023 A336044 A019893 * A117023 A375070 A013668
KEYWORD
nonn,cons,easy
AUTHOR
Sean A. Irvine, Jul 24 2021
STATUS
approved

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Last modified August 31 00:13 EDT 2024. Contains 375550 sequences. (Running on oeis4.)