|
|
A265079
|
|
Numbers n such that the Crandall number C = A262961(n) has exactly one prime divisor p >= n/2.
|
|
2
|
|
|
3, 5, 7, 9, 11, 33, 36, 49, 453, 727, 1560, 1569, 1627, 5078, 6605, 17663, 27281, 29298, 29708, 39509, 98653
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
If a Crandall number C = A262961(n) is an even semiprime, then n is a term of this sequence. - Altug Alkan, Dec 30 2015
|
|
LINKS
|
|
|
EXAMPLE
|
5 is a term because A262961(5) = 302 and its prime divisors are 2, 151 and only 151 >= 5/2.
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|