a(n) = Sum_{i=0..n-1} (n+i)*a(n-1-i) for n>1, a(0)=1, a(1)=1.
A193668
a(n) = Sum_{i=0..n-1} (n+i)*a(n-1-i) for n>1, a(0)=1, a(1)=1.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =24a(4) =134a(5) =866a(6) =6392a(7) =53198a(8) =493628a(9) =5057522a(10) =56741240a(11) =692118422a(12) =9122245508a(13) =129220379978
External references
- oeis: A193668