Convert muskingham equation to code

Convert this into matlab code

c1 = 2 ; c2 = 4 ;  c3 = 5
J = [10 20 30 40 50]
O = same size as J
On+1 =c1*Jn+1 + c2*Jn + c3*On
help me with this code
c1= 2;
c2 = 4;
c3 = 5;
J = [10:10:50]
O = [I(1) 0 0 0 0 0 0 0 0 0]
n = 1:5
i = 2:6
O(i) = c1*I(i) + c2*I(n) + c3*O(n)    %Probable error in c3*O(n) part as O is not update    
%Should i use for loop ??
display(O)

COndition is O(1) should be same as J(1) and im not getting accurate answers with this code.. help me rectify this code and its mistakes