OFFSET
1,1
COMMENTS
As with the primes in A091716, each succeeding term seems a close multiple of that preceding.
Exact values: a(8)=sqrt(1055690147582754761176900206278/1268700426680407), a(9)=sqrt(2343463734895394416636292841043365/28152824997414728), a(10)=sqrt(758560349177461014920842710257059832362/91106022529587615169). [From Sean A. Irvine, Apr 07 2010]
Exact values from Sean A. Irvine are population standard deviations. - Hiroaki Yamanouchi, Sep 23 2014
REFERENCES
John E. Freund, Modern elementary statistics, 5th ed. (Prentice-Hall, 1979), pp. 42-47
EXAMPLE
a(3) = 285 because this is the computed and rounded sample standard deviation of the composites below 10^3.
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Enoch Haga, Mar 06 2004
EXTENSIONS
Corrected and extended by Sean A. Irvine, Apr 07 2010
a(8) corrected and a(11)-a(13) from Hiroaki Yamanouchi, Sep 23 2014
STATUS
approved