a(n) = Sum_{k=0..floor((n-1)/2)} (-n)^k * Stirling2(n,2*k+1).
A357739
a(n) = Sum_{k=0..floor((n-1)/2)} (-n)^k * Stirling2(n,2*k+1).
Terms
- a(0) =0a(1) =1a(2) =1a(3) =-2a(4) =-23a(5) =-99a(6) =1a(7) =4411a(8) =45137a(9) =205570a(10) =-1270799a(11) =-38876573a(12) =-441073511a(13) =-1921300835a(14) =34908578433a(15) =994442615986
External references
- oeis: A357739