a(n)= 5*(n-1)*a(n-1) -(n-1)*a(n-2), with a(0)=0, a(1)=1.
A108207
a(n)= 5*(n-1)*a(n-1) -(n-1)*a(n-2), with a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =48a(4) =705a(5) =13908a(6) =344175a(7) =10241802a(8) =356053845a(9) =14160219384a(10) =634005387675
External references
- oeis: A108207