A361414 Number of non-abelian indecomposable groups of order n.
0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 7, 0, 2, 0, 2, 1, 1, 0, 6, 0, 1, 2, 1, 0, 1, 0, 33, 0, 1, 0, 4, 0, 1, 1, 5, 0, 2, 0, 1, 0, 1, 0, 23, 0, 2, 0, 2, 0, 6, 1, 5, 1, 1, 0, 3, 0, 1, 1, 200, 0, 1, 0, 2, 0, 1, 0, 19, 0, 1, 1, 1, 0, 2, 0, 24, 8, 1, 0, 3, 0
Offset: 1
Keywords
Examples
a(16) = 7 because 1 of the 8 indecomposable groups of order 16 is abelian and 2 of the 9 non-abelian groups of order 16 are decomposable, leaving 7 non-abelian indecomposable groups of order 16.
Links
- Kevin Lamoreau, Table of n, a(n) for n = 1..2047