a(n) = (4*n^n + (n-10)^n)/5.
A083307
a(n) = (4*n^n + (n-10)^n)/5.
Terms
- a(0) =1a(1) =-1a(2) =16a(3) =-47a(4) =464a(5) =1875a(6) =38144a(7) =658397a(8) =13421824a(9) =309936391a(10) =8000000000a(11) =228249336489
External references
- oeis: A083307
A083307
a(n) = (4*n^n + (n-10)^n)/5.