[1,4,1,7,4,1,10,7,4,1,13,10,7,4,1,16,13,10,7,4,1, 19,16,13,10,7,4,1,22,19,16,13,10,7,4,1,25,22,19, 16,13,10,7,4,1,28,25,22,19,16,13,10,7,4,1,31,28, 25,22,19,16,13,10,7,4,1]