a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * Stirling2(n, k) * x^k. Row sums of A344499.
A372346
a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * Stirling2(n, k) * x^k. Row sums of A344499.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =27a(5) =175a(6) =1532a(7) =17276a(8) =243093a(9) =4165261a(10) =85133686a(11) =2039546786a(12) =56447550543
External references
- oeis: A372346