a(1)=1, a(n) = n*18^(n-1) + a(n-1).
A014935
a(1)=1, a(n) = n*18^(n-1) + a(n-1).
Terms
- a(0) =1a(1) =37a(2) =1009a(3) =24337a(4) =549217a(5) =11886625a(6) =249972193a(7) =5147732449a(8) =104327377633
External references
- oeis: A014935
A014935
a(1)=1, a(n) = n*18^(n-1) + a(n-1).