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1, 3, 6, 10, 15, 21, 28, 36, 45, 56, 78, 111, 155, 210, 276, 353, 441, 540, 641, 752, 873, 1004, 1145, 1296, 1457, 1628, 1809, 2000, 2202, 2414, 2636, 2868, 3110, 3362, 3624, 3896, 4178, 4470, 4773, 5086, 5409, 5742, 6085, 6438, 6801, 7174, 7557, 7950, 8354
(list; graph; refs; listen; history; internal format)
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