a(n) = binomial(n + 10, 10) * 5^n.

A173113

a(n) = binomial(n + 10, 10) * 5^n.

Terms

    a(0) =1a(1) =55a(2) =1650a(3) =35750a(4) =625625a(5) =9384375a(6) =125125000a(7) =1519375000a(8) =17092968750a(9) =180425781250

External references