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A092801
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Standard deviation (rounded) of composites below 10^n.
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3
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OFFSET
| 1,1
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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 (sairvin(AT)xtra.co.nz), Apr 07 2010]
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REFERENCES
| John E. Freund, Modern elementary statistics, 5th ed. (Prentice-Hall, 1979), pp. 42-47
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EXAMPLE
| a(3)=285 because this is the computed and rounded sample standard deviation of the composites below 10^3
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CROSSREFS
| Cf. A092802, A091716.
Sequence in context: A183067 A056261 A097353 * A152280 A061629 A011944
Adjacent sequences: A092798 A092799 A092800 * A092802 A092803 A092804
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KEYWORD
| more,nonn
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AUTHOR
| Enoch Haga (Enokh(AT)comcast.net), Mar 06 2004
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EXTENSIONS
| Corrected and extended by Sean A. Irvine (sairvin(AT)xtra.co.nz), Apr 07 2010
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