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A229099 Decimal expansion of 1 - 6/Pi^2. 8
3, 9, 2, 0, 7, 2, 8, 9, 8, 1, 4, 5, 9, 7, 3, 3, 7, 1, 3, 3, 6, 7, 2, 3, 2, 2, 0, 7, 4, 1, 6, 3, 4, 1, 6, 6, 5, 7, 3, 8, 4, 7, 3, 5, 1, 9, 6, 6, 5, 2, 0, 7, 0, 6, 9, 2, 6, 3, 4, 5, 8, 0, 8, 6, 3, 4, 9, 6, 1, 2, 7, 4, 2, 2, 6, 5, 8, 7, 3, 5, 2, 8, 5, 2, 7, 4, 4, 3, 5, 6, 4, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Probability that a random number is not squarefree; probability that two random numbers have a common divisor greater than 1.

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 0..10000

EXAMPLE

0.39207289814597337133672322074163416657384735196652070692634580863496...

PROG

(PARI) 1-6/Pi^2

CROSSREFS

Cf. A059956, A063035.

Sequence in context: A179430 A016048 A256501 * A021259 A194807 A114875

Adjacent sequences:  A229096 A229097 A229098 * A229100 A229101 A229102

KEYWORD

nonn,cons,easy

AUTHOR

Charles R Greathouse IV, Sep 13 2013

STATUS

approved

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Last modified July 18 11:30 EDT 2019. Contains 325138 sequences. (Running on oeis4.)