a(n) = 6*a(n-1) - a(n-2), with a(1) = 13, a(2) = 73.
A220414
a(n) = 6*a(n-1) - a(n-2), with a(1) = 13, a(2) = 73.
Terms
- a(0) =13a(1) =73a(2) =425a(3) =2477a(4) =14437a(5) =84145a(6) =490433a(7) =2858453a(8) =16660285a(9) =97103257a(10) =565959257a(11) =3298652285a(12) =19225954453a(13) =112057074433a(14) =653116492145
External references
- oeis: A220414