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A145423 Decimal expansion of sum_{n=1..infinity} (-1)^(n-1)/(n^2-1/4)^2. 0
1, 7, 1, 6, 8, 1, 4, 6, 9, 2, 8, 2, 0, 4, 1, 3, 5, 2, 3, 0, 7, 4, 7, 1, 3, 2, 3, 3, 4, 4, 0, 9, 9, 4, 2, 3, 1, 6, 0, 5, 6, 6, 1, 2, 0, 1, 2, 4, 9, 7, 8, 8, 3, 5, 8, 0, 5, 0, 1, 1, 0, 8, 1, 5, 3, 8, 4, 3, 6, 7, 1, 8, 7, 4, 2, 7, 5, 8, 2, 0, 0, 2, 7, 4, 3, 9, 3, 0, 3, 4, 9, 3, 1 (list; constant; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

Alexander Apelblat, Tables of Integrals and Series, Harri Deutsch, (1996), 4.1.18

FORMULA

8 minus A019692.

EXAMPLE

1.7168146928204135...

MAPLE

evalf(8-2*Pi) ;

CROSSREFS

Sequence in context: A199279 A086309 A060625 * A019796 A190264 A199076

Adjacent sequences:  A145420 A145421 A145422 * A145424 A145425 A145426

KEYWORD

cons,easy,nonn

AUTHOR

R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2009

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Last modified February 15 16:28 EST 2012. Contains 205823 sequences.