a(n) is the smallest number m such that sigma(m)=26^n, or 0 if m does not exist.
A180461
a(n) is the smallest number m such that sigma(m)=26^n, or 0 if m does not exist.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =312399a(5) =8911029a(6) =187131609a(7) =5560483959a(8) =126501010209
External references
- oeis: A180461