a(n) is the smallest tetranacci number (A000078) with exactly n prime factors (counted with multiplicity).
A359877
a(n) is the smallest tetranacci number (A000078) with exactly n prime factors (counted with multiplicity).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =8a(4) =56a(5) =108a(6) =5536a(7) =28074040a(8) =39648a(9) =147312a(12) =2775641472
External references
- oeis: A359877