OFFSET
1,7
COMMENTS
From Zak Seidov, Nov 12 2008: (Start)
Conjecture: a(n) > 0, except n=1,2,3,6,24, when a(n)=0.
This fact can be apparently explained by existence of twin primes. (End)
LINKS
Zak Seidov, Table of n, a(n) for n = 1..3000.
Zak Seidov, A024899(n) > A024898(n) [From Zak Seidov, Nov 12 2008]
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Zak Seidov, Apr 18 2008
STATUS
approved