|
|
A117101
|
|
Numbers n such that nextprime(5*n)>5*nextprime(n) and n is composite (if p is prime then nextprime(p)=p).
|
|
0
|
|
|
18, 28, 40, 60, 72, 78, 82, 96, 102, 105, 106, 155, 156, 166, 178, 180, 192, 222, 226, 228, 250, 262, 266, 267, 268, 270, 280, 282, 292
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
PROG
|
(PARI) for(i=1, 300, if(nextprime(5*i)>nextprime(5)*nextprime(i) && !isprime(i), print1(i, ", ")))
|
|
CROSSREFS
|
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Mohammed Bouayoun (mohammed.bouayoun(AT)sanef.com), Apr 18 2006
|
|
STATUS
|
approved
|
|
|
|