a(n) = 10*a(n-1)-24*a(n-2) for n>1, a(0)=1, a(1)=25.

A081195

a(n) = 10*a(n-1)-24*a(n-2) for n>1, a(0)=1, a(1)=25.

Terms

    a(0) =1a(1) =25a(2) =226a(3) =1660a(4) =11176a(5) =71920a(6) =450976a(7) =2783680a(8) =17013376a(9) =103325440a(10) =624933376a(11) =3769523200a(12) =22696830976a(13) =136499752960a(14) =820273586176

External references