[1,3,3,3,6,6,6,10,10,10,15,15,15,15,15,15,21,21, 21,21,21,21,28,28,28,28,28,28,36,36,36,36,36,36, 36,36,36,36,45,45,45,45,45,45,45,45,45,45,55,55, 55,55,55,55,55,55,55,55,66,66,66,66,66,66,66,66, 66,66,66,66]