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A051821
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Number of numbers below 10^n with nonzero multiplicative digital root 1 (not counting 0).
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1
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1, 6, 30, 273, 3321, 38545, 413435, 4179623, 40717550, 389610397, 3704647927, 35103992478, 330893886987, 3100780107689, 28983549003377, 272016949455533
(list; graph; refs; listen; history; internal format)
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