[0,1,3,6,10,15,16,18,21,25,30,36,38,41,45,50,56,
63,66,70,75,81,88,96,100,105,111,118,126,135,140,
146,153,161,170,180,181,183,186,190,195,201,203,
206,210,215,221,228,231,235,240,246,253,261,265,
270,276,283,291,300,305,311,318,326,335,345,351,
358,366,375,385,396,398,401,405,410,416,423,426,
430]
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