OFFSET
0,2
COMMENTS
FORMULA
EXAMPLE
For 0 <= n <= 5, A073918(n) = prime(n)# + 1, therefore a(n) = prime(n)#.
For n = 6, the smallest prime p such that p - 1 has 6 distinct prime factors is prime(5)#*prime(8) + 1, therefore a(n) = round(prime(6)/(prime(8) + 1/prime(5)# - prime(6))) = 2.
PROG
(PARI) apply( a(n)=1\/(A073918(n)/factorback(primes(n))-1), [0..99])
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, May 31 2018
STATUS
approved