OFFSET
1,1
MAPLE
seq(A027384(ithprime(n)), n=1..40) ; # R. J. Mathar, Jun 09 2016
PROG
(Python)
from sympy import prime
def A027419(n): return len({i*j for i in range(1, prime(n)+1) for j in range(1, i+1)})+1 # Chai Wah Wu, Oct 13 2023
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Olivier Gérard, Nov 15 1997
STATUS
approved