a(n) = Sum_{k=0..n} binomial(n,k) * A000108(k) * k!.
A349640
a(n) = Sum_{k=0..n} binomial(n,k) * A000108(k) * k!.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =46a(4) =485a(5) =7066a(6) =130987a(7) =2946182a(8) =77923561a(9) =2369742130a(10) =81467904431
External references
- oeis: A349640