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A127198 Value of the Foxtrot sum Sum[((-1)^(n + 1)*n^2)/(n^3 + 1), {n, Infinity}]. 0
2, 3, 9, 5, 6, 0, 7, 4, 7, 3, 4, 0, 7, 4, 1, 9, 4, 9, 8, 7, 8, 1, 5, 3, 2, 5, 1, 1, 3, 8, 0, 3, 4, 1, 5, 1, 4, 8, 0, 1, 0, 8, 6, 2, 3, 9, 9, 3, 3, 6, 9, 4, 0, 8, 6, 0, 1, 1, 9, 6, 3, 5, 9, 3, 9, 6, 7, 3, 1, 4, 1, 5, 5, 3, 8, 2, 3, 1, 2, 8, 1, 6, 9, 8, 2, 6, 4, 6, 8, 4, 6, 1, 0, 6, 3, 2, 2, 7, 3, 5, 6, 6, 5, 8, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..104.

Eric Weisstein's World of Mathematics, Foxtrot Series

FORMULA

(1 - Log[2] + Pi*Sech[(Sqrt[3]*Pi)/2])/3

EXAMPLE

0.23956074734074194987...

CROSSREFS

Sequence in context: A229212 A210586 A202017 * A065631 A222244 A176570

Adjacent sequences:  A127195 A127196 A127197 * A127199 A127200 A127201

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Jan 08 2007

STATUS

approved

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Last modified March 25 01:30 EDT 2017. Contains 284036 sequences.