a(n) is the smallest number m such that each of the numbers m-1, m and m+1 has n distinct prime divisors.
A093549
a(n) is the smallest number m such that each of the numbers m-1, m and m+1 has n distinct prime divisors.
Terms
- a(0) =3a(1) =21a(2) =645a(3) =37961a(4) =1042405a(5) =323567035a(6) =30989984675
External references
- oeis: A093549