a(n) = sum_{k=0,...,[n/2]} s(n-k,k)^2, s = A048994, Stirling numbers of the first kind.
A295227
a(n) = sum_{k=0,...,[n/2]} s(n-k,k)^2, s = A048994, Stirling numbers of the first kind.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =5a(5) =45a(6) =698a(7) =16936a(8) =594702a(9) =28564021a(10) =1799119626a(11) =143863537330
External references
- oeis: A295227