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A218126
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Number of 9-ary sequences with primitive period n.
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2
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1, 9, 72, 720, 6480, 59040, 530640, 4782960, 43040160, 387419760, 3486725280, 31381059600, 282428998560, 2541865828320, 22876787671920, 205891132034880, 1853020145805120, 16677181699666560, 150094634909047920, 1350851717672992080, 12157665455570137920
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