G.f.: exp( Sum_{n>=1} binomial(10*n-1, 5*n) * x^n/n ).
A213405
G.f.: exp( Sum_{n>=1} binomial(10*n-1, 5*n) * x^n/n ).
Terms
- a(0) =1a(1) =126a(2) =54127a(3) =32006130a(4) =21932146139
External references
- oeis: A213405
A213405
G.f.: exp( Sum_{n>=1} binomial(10*n-1, 5*n) * x^n/n ).