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A141492 The floor of 10^n divided by difference between the 10^n-th root of 10^n and 1. 0
3, 21, 144, 1085, 8685, 72381, 620420, 5428680, 48254941, 434294481, 3948131653, 36191206824, 334072678386, 3102103442165, 28952965460216, 271434051189531, 2554673422960304, 24127471216847323, 228576043106974645 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Conjecture: This sequence converges to the number of primes < 10^n or Pi(10^n).

FORMULA

10^n/((10^n)^(1/10^n) - 1).

PROG

(PARI) g(n) = for(x=1, n, y=1/((10^x)^(1/10^x)-1); print1(floor(y)", "))

CROSSREFS

Sequence in context: A137969 A054419 A033888 * A173350 A169634 A088088

Adjacent sequences:  A141489 A141490 A141491 * A141493 A141494 A141495

KEYWORD

nonn

AUTHOR

Cino Hilliard (hillcino368(AT)hotmail.com), Aug 10 2008

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.