a(0) = 1; a(n) = 5 * Sum_{k=1..n} binomial(n,k) * a(k-1).
A344840
a(0) = 1; a(n) = 5 * Sum_{k=1..n} binomial(n,k) * a(k-1).
Terms
- a(0) =1a(1) =5a(2) =35a(3) =265a(4) =2195a(5) =19625a(6) =187755a(7) =1909185a(8) =20521515a(9) =232124745a(10) =2752591475a(11) =34108980105a(12) =440444019835
External references
- oeis: A344840