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A099298
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Number of times the digit 7 appears in the first 10^n digits of Pi.
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12
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0, 8, 95, 970, 10025, 99800, 1000207, 9999610, 99996061, 1000041330, 10000084530, 99999818723
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OFFSET
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1,2
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REFERENCES
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Alfred S. Posamentier & Ingmar Lehmann, A Biography of the World's Most Mysterious Number, Prometheus Books, Amherst, NY 2004, page 129.
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LINKS
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Eric Weisstein's World of Mathematics, Pi Digits
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MATHEMATICA
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$MaxPrecision = 1100000; dp = Drop[ RealDigits[Pi, 10, 1000010] [[1]], 1]; Table[ Count[ Take[dp, 10^n], 7], {n, 6}]
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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