a(n) = 6*a(n-1) - a(n-2) for n >= 2, with a(0)=3, a(1)=13.

A038762

a(n) = 6*a(n-1) - a(n-2) for n >= 2, with a(0)=3, a(1)=13.

Terms

    a(0) =3a(1) =13a(2) =75a(3) =437a(4) =2547a(5) =14845a(6) =86523a(7) =504293a(8) =2939235a(9) =17131117a(10) =99847467a(11) =581953685a(12) =3391874643a(13) =19769294173a(14) =115223890395a(15) =671574048197

External references