a(1)=1; a(n)=Sum_{k=1..n-1} Stirling_1(n,k)*a(k).
A246040
a(1)=1; a(n)=Sum_{k=1..n-1} Stirling_1(n,k)*a(k).
Terms
- a(0) =1a(1) =-1a(2) =5a(3) =-47a(4) =719a(5) =-16299a(6) =513253a(7) =-21430513a(8) =1145710573a(9) =-76317960163
External references
- oeis: A246040