a(1)=1, a(n) = 3*n*a(n-1) + 1, n > 1.
A173516
a(1)=1, a(n) = 3*n*a(n-1) + 1, n > 1.
Terms
- a(0) =1a(1) =7a(2) =64a(3) =769a(4) =11536a(5) =207649a(6) =4360630a(7) =104655121a(8) =2825688268a(9) =84770648041
External references
- oeis: A173516
A173516
a(1)=1, a(n) = 3*n*a(n-1) + 1, n > 1.