a(n) = binomial(C(n+1),C(n)) where C(n) = A000108(n) the n-th Catalan number.
A334575
a(n) = binomial(C(n+1),C(n)) where C(n) = A000108(n) the n-th Catalan number.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =2002a(4) =52860229080
External references
- oeis: A334575