a(0)=1, a(1)=7, a(n)=14*a(n-1)-7*a(n-2) for n>1 .

A165230

a(0)=1, a(1)=7, a(n)=14*a(n-1)-7*a(n-2) for n>1 .

Terms

    a(0) =1a(1) =7a(2) =91a(3) =1225a(4) =16513a(5) =222607a(6) =3000907a(7) =40454449a(8) =545355937a(9) =7351801975a(10) =99107736091

External references