a(n) is the smallest tetranacci number (A000078) with exactly n distinct prime factors.
A359849
a(n) is the smallest tetranacci number (A000078) with exactly n distinct prime factors.
Terms
- a(0) =1a(1) =2a(2) =15a(3) =1490a(4) =39648a(5) =28074040
External references
- oeis: A359849