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A076753 a(n) = nearest integer to the standard deviation of the divisors of n. 1
0, 1, 1, 2, 3, 2, 4, 3, 4, 4, 7, 4, 8, 6, 6, 6, 11, 6, 13, 7, 9, 10, 16, 8, 13, 12, 12, 10, 20, 10, 21, 12, 15, 16, 16, 11, 25, 17, 17, 13, 28, 14, 30, 17, 16, 21, 33, 14, 26, 19, 23, 20, 37, 18, 25, 19, 26, 27, 41, 17, 42, 29, 23, 23, 30, 22, 47, 26, 32, 24, 49, 20, 51, 35, 28, 29 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Hans Havermann, Table of n, a(n) for n = 1..10000

EXAMPLE

The standard deviation of the divisors {1, 2, 3, 6} of 6 is approximately 2.16025, so that a(6) = 2.

MATHEMATICA

Flatten[Append[{0}, Table[Round[StandardDeviation[Divisors[n]]], {n, 2, 100}]]]

CROSSREFS

Sequence in context: A295753 A144968 A239328 * A245134 A068962 A036380

Adjacent sequences:  A076750 A076751 A076752 * A076754 A076755 A076756

KEYWORD

nonn

AUTHOR

Joseph L. Pe, Nov 12 2002

STATUS

approved

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Last modified May 7 08:46 EDT 2021. Contains 343636 sequences. (Running on oeis4.)