A076754 a(n) = nearest integer to the skewness of the divisors of n.

0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 2, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 2, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 2, 0, 1, 1, 1, 1, 1, 0, 1, 1, 2, 0, 2, 0, 1, 1, 1, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 1, 1, 0, 2, 1, 1, 1, 1, 1, 2, 0, 1, 1, 2, 0, 1, 0, 1, 2, 1

Offset

2,35

Comments

Skewness is a measure of the asymmetry of the distribution of a data set of numbers and is defined as the third central moment divided by the cube of the standard deviation.

Links

Hans Havermann, Table of n, a(n) for n = 2..10000

Mathematica

Table[Round[Skewness[Divisors[n]]], {n, 2, 150}]

Crossrefs

Sequence in context: A090418 A363877 A322452 * A346482 A364043 A339933

Adjacent sequences: A076751 A076752 A076753 * A076755 A076756 A076757

Keyword

nonn

Author

Joseph L. Pe, Nov 12 2002

Status

approved