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Search: id:A141492
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| A141492 |
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The floor of 10^n divided by difference between the 10^n-th root of 10^n and 1. |
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+0
1
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| 3, 21, 144, 1085, 8685, 72381, 620420, 5428680, 48254941, 434294481, 3948131653, 36191206824, 334072678386, 3102103442165, 28952965460216, 271434051189531, 2554673422960304, 24127471216847323, 228576043106974645
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Conjecture: This sequence converges to the number of primes < 10^n or Pi(10^n).
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FORMULA
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10^n/((10^n)^(1/10^n) - 1).
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PROGRAM
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(PARI) g(n) = for(x=1, n, y=1/((10^x)^(1/10^x)-1); print1(floor(y)", "))
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CROSSREFS
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Sequence in context: A137969 A054419 A033888 this_sequence A088088 A037761 A037649
Adjacent sequences: A141489 A141490 A141491 this_sequence A141493 A141494 A141495
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)hotmail.com), Aug 10 2008
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