OFFSET
1,1
COMMENTS
A014574 (average of twin prime pairs) is a subsequence.
PROG
(PARI) for(n=2, 1200, if(matsize(factor(n-1))[1]*matsize(factor(n+1))[1]==1, print1(n, ", ")))
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Sep 22 2003
EXTENSIONS
Edited and extended by Klaus Brockhaus, Sep 25 2003
STATUS
approved