a(n) = Sum_{k=0..n} binomial(n,k)^3 * k! * (-2)^(n-k).
A354941
a(n) = Sum_{k=0..n} binomial(n,k)^3 * k! * (-2)^(n-k).
Terms
- a(0) =1a(1) =-1a(2) =-10a(3) =-2a(4) =488a(5) =4088a(6) =-9968a(7) =-730480a(8) =-9751936a(9) =-11540096a(10) =2480655104a(11) =62522038016a(12) =680469314560
External references
- oeis: A354941