Number of length 4+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.

A249294

Number of length 4+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.

Terms

    a(0) =88a(1) =1094a(2) =6960a(3) =40588a(4) =150112a(5) =469072a(6) =1263044a(7) =3011088a(8) =6514660a(9) =13131956a(10) =24755440a(11) =44396112a(12) =76182120a(13) =125764540a(14) =200780652a(15) =311698092a(16) =471201156a(17) =696406084a(18) =1008398272a(19) =1433424724a(20) =2003585272a(21) =2758886876a(22) =3745643452

External references