login
A243592
Numbers n such that there is no indecomposable group of order n.
1
1, 15, 33, 35, 45, 51, 65, 69, 77, 85, 87, 91, 95, 99, 105, 115, 119, 123, 133, 135, 141, 143, 145, 153, 159, 161, 165, 175, 177, 185, 187, 195, 207, 209, 213, 215, 217, 221, 231, 235, 245, 247, 249, 255, 259, 261, 265, 267, 285, 287, 295, 297, 299, 303, 315, 319, 321, 323, 325, 329, 335, 339, 341, 345, 357, 365, 369, 371
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
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
Sequence in context: A302697 A337987 A154369 * A089966 A327784 A339562
KEYWORD
nonn
AUTHOR
Joerg Arndt, Jun 07 2014
STATUS
approved