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A128952
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a(n) is equal to the number of positive integers m less than or equal to 10^n such that m is not divisible by the prime 3 and is not divisible by at least one of the primes 2, 5 and 7.
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1
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66, 657, 6572, 65715, 657143, 6571429, 65714286, 657142857, 6571428572, 65714285715, 657142857143, 6571428571429, 65714285714286, 657142857142857, 6571428571428572, 65714285714285715, 657142857142857143
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