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A072691 Decimal expansion of Pi^2/12. 8
8, 2, 2, 4, 6, 7, 0, 3, 3, 4, 2, 4, 1, 1, 3, 2, 1, 8, 2, 3, 6, 2, 0, 7, 5, 8, 3, 3, 2, 3, 0, 1, 2, 5, 9, 4, 6, 0, 9, 4, 7, 4, 9, 5, 0, 6, 0, 3, 3, 9, 9, 2, 1, 8, 8, 6, 7, 7, 7, 9, 1, 1, 4, 6, 8, 5, 0, 0, 3, 7, 3, 5, 2, 0, 1, 6, 0, 0, 4, 3, 6, 9, 1, 6, 8, 1, 4, 4, 5, 0, 3, 0, 9, 8, 7, 9, 3, 5, 2, 6, 5, 2, 0, 0, 2 (list; constant; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

Also -dilogarithm(-1). - Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jul 21 2004

Also zeta(1,1), the double zeta-function with both arguments equal to 1. - R. J. Mathar, Oct 10 2011

REFERENCES

Jolley, Summation of Series, Dover (1961) eq. (234) page 44.

LINKS

Eric Weisstein's World of Mathematics, Dilogarithm MathWorld page

FORMULA

= 1/(1*2)+ 1/(2*4) + 1/(3*6)+ 1/(4*8)+ ... [Jolley]

EXAMPLE

0.822467033424113218236207583323... = A013661/2.

CROSSREFS

Cf. A072692 (Pi^2/12 is in asymptotic formula related to sigma(n), A000203).

Sequence in context: A037920 A138997 A133918 * A021928 A185111 A086058

Adjacent sequences:  A072688 A072689 A072690 * A072692 A072693 A072694

KEYWORD

cons,nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jul 02 2002

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.