Finding elements in table

Hi guys. I am trying to find a sequence of entries in a vector. The vector is essentially a 1 row by 2114 columns long. The sequence I am trying to find is [3,3,3,-3,-3,-3,-3,3,3,3]. My question is, how do I create a loop that will look for every instance of this sequence of entries?

The first set of that sequence I found was at columns 91-100. In the code, rec1 is the long vector table. I am trying to find the instances of the columns that this happens and display them in another variable/table.

Here is some (bad) code I wrote attempting this:

S = rec1;
preamble1 = rec1(:,91:100);
% user1 = rec1(:,100:110);
disp(pam2letters(S))
for i = S
    if S == rec1(:,91:100);
        x = rec1(:,91:100);
        disp(x)
    else
    end
end

Answer 1

[Star Strider]

Amazingly enough, the strfind function works here:

V =  [randi(9, 1, 20) 3,3,3,-3,-3,-3,-3,3,3,3 randi(9, 1, 20)];     % Vector
T = [3,3,3,-3,-3,-3,-3,3,3,3];                                      % Target Sequence
Ix = strfind(V, T);                                                 % Find Start Index Of Target Sequence