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, 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

Offset: 1

Author

Jean-François Alcover, Jun 17 2014

Keywords

• nonn
• cons

Examples

			-1.4879506635322726315987491125787134987961...
		

References

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

Links

• Wikipedia, Powerful number

Crossrefs

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

Programs

Mathematica

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