[0,1,1,2,4,6,9,12,15,20,25,30,35,42,49,56,63,70,
77,88,99,110,121,132,143,156,169,182,195,208,221,
238,255,272,289,306,323,342,361,380,399,418,437,
460,483,506,529,552,575,598,621,644,667,696,725,
754,783,812,841,870,899,930,961,992,1023,1054,
1085,1116,1147,1184,1221,1258,1295,1332,1369,1406,
1443,1480,1517,1558,1599,1640]
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