a(n) = (4*(n+5)^n + n^n)/5.
A083304
a(n) = (4*(n+5)^n + n^n)/5.
Terms
- a(0) =1a(1) =5a(2) =40a(3) =415a(4) =5300a(5) =80625a(6) =1426580a(7) =28830155a(8) =655940020a(9) =16606321525a(10) =463320312500
External references
- oeis: A083304
A083304
a(n) = (4*(n+5)^n + n^n)/5.