Number of n-digit base-10 numbers whose digit sum is equal to ceiling(9*n/2).

A382531

Number of n-digit base-10 numbers whose digit sum is equal to ceiling(9*n/2).

Terms

    a(0) =1a(1) =9a(2) =70a(3) =615a(4) =5520a(5) =50412a(6) =468448a(7) =4379055a(8) =41395240a(9) =392406145a(10) =3748943890a(11) =35866068766a(12) =345143007910

External references