[0,1,2,4,6,9,12,15,19,24,29,35,41,48,55,62,70,78,
87,97,107,118,129,141,153,165,178,191,205,219,234,
249,265,282,299,317,335,354,373,392,412,433,454,
475,497,519,542,565,589,613,638,664,690,717,744,
772,800,828,857,887,917,948,979,1010,1042,1074,
1107,1140,1174,1208,1243,1278,1314,1351,1388,1426,
1464,1503]
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