a(n) is the smallest odd composite number m such that m+2 is prime and the set of distinct prime factors of m consists of the first n odd primes.
A136354
a(n) is the smallest odd composite number m such that m+2 is prime and the set of distinct prime factors of m consists of the first n odd primes.
Terms
- a(0) =9a(1) =15a(2) =105a(3) =3465a(4) =15015a(5) =765765a(6) =33948915a(7) =334639305a(8) =3234846615a(9) =100280245065
External references
- oeis: A136354