Number of length n+3 0..5 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.

A248534

Number of length n+3 0..5 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.

Terms

    a(0) =198a(1) =246a(2) =306a(3) =378a(4) =462a(5) =594a(6) =762a(7) =972a(8) =1230a(9) =1620a(10) =2118a(11) =2748a(12) =3534a(13) =4710a(14) =6222a(15) =8148a(16) =10566a(17) =14160a(18) =18810a(19) =24762a(20) =32262a(21) =43356a(22) =57774a(23) =76290a(24) =99678a(25) =134160a(26) =179106a(27) =236952a(28) =310134a(29) =417798

External references