Number of length n+3 0..4 arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.
A249286
Number of length n+3 0..4 arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.
Terms
- a(0) =524a(1) =2228a(2) =9504a(3) =40588a(4) =173368a(5) =740616a(6) =3164312a(7) =13520668a(8) =57772560a(9) =246857788a(10) =1054810472a(11) =4507167504a(12) =19258980852a(13) =82293014888a(14) =351635522044
External references
- oeis: A249286