a(n) is the least k such that k, k+1 and 2*k+1 all have exactly n prime factors counted with multiplicity.
A361874
a(n) is the least k such that k, k+1 and 2*k+1 all have exactly n prime factors counted with multiplicity.
Terms
- a(0) =2a(1) =25a(2) =171a(3) =1592a(4) =37975a(5) =928624a(6) =8412687a(7) =106390624a(8) =2306890624a(9) =37119730112a(10) =429122890624
External references
- oeis: A361874