a(n) = 6*a(n-1) - a(n-2) + 6 with n>1, a(0)=0, a(1)=1.
A210695
a(n) = 6*a(n-1) - a(n-2) + 6 with n>1, a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =12a(3) =77a(4) =456a(5) =2665a(6) =15540a(7) =90581a(8) =527952a(9) =3077137a(10) =17934876a(11) =104532125a(12) =609257880a(13) =3551015161a(14) =20696833092a(15) =120629983397a(16) =703083067296
External references
- oeis: A210695