Sum of factorial-Catalan numbers over a certain family of decorations.
A289431
Sum of factorial-Catalan numbers over a certain family of decorations.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =40a(4) =224a(5) =1360a(6) =8864a(7) =61984a(8) =467072
External references
- oeis: A289431