Number of length n+2 0..5 arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
A248458
Number of length n+2 0..5 arrays with no three consecutive terms having the sum of any two elements equal to twice the third.
Terms
- a(0) =174a(1) =862a(2) =4272a(3) =21182a(4) =105026a(5) =520788a(6) =2582406a(7) =12805334a(8) =63497776a(9) =314866606a(10) =1561330890a(11) =7742183252a(12) =38391228334a(13) =190370917646a(14) =943993962960
External references
- oeis: A248458