Longest sequence of n-digit n-almost primes formed by beginning with a single-digit prime and appending a single decimal digit to each previous term.
A107339
Longest sequence of n-digit n-almost primes formed by beginning with a single-digit prime and appending a single decimal digit to each previous term.
Terms
- a(0) =5a(1) =57a(2) =574a(3) =5748a(4) =57486a(5) =574868a(6) =5748688a(7) =57486888
External references
- oeis: A107339