a(n) = Sum_{k=1..n} k! * k^(n-3) * Stirling1(n,k).
A373869
a(n) = Sum_{k=1..n} k! * k^(n-3) * Stirling1(n,k).
Terms
- a(0) =0a(1) =1a(2) =0a(3) =2a(4) =26a(5) =674a(6) =28894a(7) =1848216a(8) =165229560a(9) =19698788448
External references
- oeis: A373869