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A244000 Decimal expansion of the Bateman-Grosswald constant zeta(2/3)/zeta(2), a constant (negated) arising in the asymptotic evaluation of the number of square-full numbers (also called "powerful" numbers). 1
1, 4, 8, 7, 9, 5, 0, 6, 6, 3, 5, 3, 2, 2, 7, 2, 6, 3, 1, 5, 9, 8, 7, 4, 9, 1, 1, 2, 5, 7, 8, 7, 1, 3, 4, 9, 8, 7, 9, 6, 1, 0, 8, 5, 3, 8, 1, 2, 1, 0, 4, 4, 2, 5, 1, 4, 2, 4, 6, 8, 8, 1, 7, 2, 8, 3, 5, 6, 1, 2, 9, 0, 2, 1, 7, 2, 2, 6, 0, 1, 1, 5, 7, 0, 1, 4, 2, 4, 3, 9, 8, 7, 9, 4, 5, 0, 8, 6, 8, 9, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 2.6 Niven's constant, p. 113.

LINKS

Table of n, a(n) for n=1..101.

Wikipedia, Powerful number

EXAMPLE

-1.4879506635322726315987491125787134987961...

MATHEMATICA

RealDigits[ Zeta[2/3] / Zeta[2], 10, 101] // First

CROSSREFS

Cf. A001694, A033150, A059956 (analog for squarefree integers), A090699.

Sequence in context: A019924 A021209 A247605 * A201937 A211456 A309665

Adjacent sequences:  A243997 A243998 A243999 * A244001 A244002 A244003

KEYWORD

nonn,cons

AUTHOR

Jean-Fran├žois Alcover, Jun 17 2014

STATUS

approved

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Last modified September 17 16:50 EDT 2021. Contains 347487 sequences. (Running on oeis4.)