a(n) = Sum_{k=0..n} (k*n)^(n-k).
A349969
a(n) = Sum_{k=0..n} (k*n)^(n-k).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =16a(4) =141a(5) =1871a(6) =34951a(7) =873174a(8) =27951929a(9) =1107415549a(10) =52891809491
External references
- oeis: A349969
A349969
a(n) = Sum_{k=0..n} (k*n)^(n-k).