a(n) = ( (8 + sqrt(7))^n - (8 - sqrt(7))^n )/(2*sqrt(7)).

A154249

a(n) = ( (8 + sqrt(7))^n - (8 - sqrt(7))^n )/(2*sqrt(7)).

Terms

    a(0) =1a(1) =16a(2) =199a(3) =2272a(4) =25009a(5) =270640a(6) =2904727a(7) =31049152a(8) =331216993a(9) =3529670224a(10) =37595354983a(11) =400334476960

External references