OFFSET
1,2
COMMENTS
Numbers n such that A090751(n) = 0.
Includes all non-prime-power members of A051532. - Eric M. Schmidt, Jun 07 2014
LINKS
Joerg Arndt, Table of n, a(n) for n = 1..506
Paul Erdős, Péter P. Pálfy, On the orders of directly indecomposable groups. Paul Erdős memorial collection. Discrete Math. 200 (1999), no. 1-3, 165-179.
CROSSREFS
KEYWORD
nonn
AUTHOR
Joerg Arndt, Jun 07 2014
STATUS
approved