A086726 Decimal expansion of sum(1/(6*m)^2,m=1..infinity).

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

Formula

Pi^2/216.

Example

.0456926129680062899...

Mathematica

Join[{0}, RealDigits[Pi^2/216, 10, 120][[1]]] (* Harvey P. Dale, Apr 30 2015 *)

Crossrefs

Cf. A086722-A086731.

Sequence in context: A080805 A104626 A242955 * A078885 A275322 A195355

Adjacent sequences: A086723 A086724 A086725 * A086727 A086728 A086729

Keyword

nonn,cons

Author

N. J. A. Sloane, Jul 31 2003

Status

approved