Number of length 3+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 3*n.

A249983

Number of length 3+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 3*n.

Terms

    a(0) =20a(1) =88a(2) =208a(3) =426a(4) =728a(5) =1178a(6) =1744a(7) =2508a(8) =3420a(9) =4580a(10) =5920a(11) =7558a(12) =9408a(13) =11606a(14) =14048a(15) =16888a(16) =20004a(17) =23568a(18) =27440a(19) =31810a(20) =36520a(21) =41778a(22) =47408a(23) =53636a(24) =60268a(25) =67548a(26) =75264a(27) =83678a(28) =92560a(29) =102190

External references