OFFSET
1,2
COMMENTS
For n > 80, does always a(n) > pi(n) the primes counting function ?
PROG
(PARI) for(n=1, 100, print1(sum(i=1, n, if(sign(n-i*numdiv(i))-1, 0, 1))+sum(i=1, n, if(n-i*numdiv(i)-1, 0, 1)), ", "))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Jun 09 2002
EXTENSIONS
Name corrected by Sean A. Irvine, Aug 20 2024
STATUS
approved