Number of length 5+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
A248466
Number of length 5+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
Terms
- a(0) =42a(1) =288a(2) =4488a(3) =24160a(4) =105026a(5) =332940a(6) =948412a(7) =2299356a(8) =5183202a(9) =10554328a(10) =20406996a(11) =37023484a(12) =64595054a(13) =107536496a(14) =173894220a(15) =271712160a(16) =414759462a(17) =616455068a(18) =899198128a(19) =1284256968a(20) =1806180638a(21) =2496566424a(22) =3406477720
External references
- oeis: A248466