Problem with nested for loops and servos

Projects Programming
6

if you want the sequence
s2 s2 s2 s7 s2 s2 s2 s7 s2 s2 s2 s7 s2 s2 s2 s7 s5
use the following code:

void loop()
{
  for (int i = 0; i < 4; i++) { //S7 activates once then S2 activates 3 times and then S5 activates and it circles back to S7 it looks like i is not incrementing
    for (int j = 0; j < 3; j++) {
      s2 () ;
      delay(1000); // This delay is to allow for
    }
    s7 () ;
    delay(1000); // This delay is to allow for
  }
  delay(1000); // This delay is to allow for
  s5 () ;
}