[1,3,3,3,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10, 10,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15, 21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21, 21,21,21,21,21,28,28,28,28,28,28,28,28,28,28,28, 28,28,28,28,28,28]