A086731 Decimal expansion of sum(1/(6*m+5)^2,m=0..infinity).

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

Offset

0,2

References

L. Fejes Toth, Lagerungen in der Ebene, auf der Kugel und im Raum, 2nd. ed., Springer-Verlag, Berlin, Heidelberg 1972; see p. 213.

Links

Table of n, a(n) for n=0..98.

Example

0.05999734755577...

Mathematica

Join[{0}, RealDigits[1/36 PolyGamma[1, 5/6], 10, 120][[1]]] (* Harvey P. Dale, Dec 15 2011 *)

Crossrefs

Cf. A086722-A086730.

Sequence in context: A345739 A055199 A147777 * A147776 A020846 A180014

Adjacent sequences: A086728 A086729 A086730 * A086732 A086733 A086734

Keyword

nonn,cons

Author

N. J. A. Sloane, Jul 31 2003

Status

approved