OFFSET
1,11
COMMENTS
It appears that the indices of the zeros in the sequence are in A018253.
LINKS
PROG
(PARI) a(n) = sum(i=1, sqrtint(n), (n % i) != 0); \\ Michel Marcus, Mar 16 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Feb 05 2014
STATUS
approved