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binomial coefficient  and  oban n.

First numbers that belong to both sets:

6, 10, 15, 20, 28, 35, 36, 55, 56, 66, 70, 78, 300, 325, 330, 378, 528, 560, 595, 630, 666, 680, 703, 715, 780, 816, 820, 903, 969, 990.