a(n) = 6*a(n-1)-a(n-2) for n > 2; a(1) = 17, a(2) = 85.
A156157
a(n) = 6*a(n-1)-a(n-2) for n > 2; a(1) = 17, a(2) = 85.
Terms
- a(0) =17a(1) =85a(2) =493a(3) =2873a(4) =16745a(5) =97597a(6) =568837a(7) =3315425a(8) =19323713a(9) =112626853a(10) =656437405a(11) =3825997577a(12) =22299548057a(13) =129971290765a(14) =757528196533
External references
- oeis: A156157