a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} binomial(k+4,5) * a(k) * a(n-1-k).
A386455
a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} binomial(k+4,5) * a(k) * a(n-1-k).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =15a(4) =344a(5) =19962a(6) =2555592a(7) =649147331a(8) =301207446317
External references
- oeis: A386455