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A136269
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Floor of sum of the first 10^n cube roots.
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0
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OFFSET
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0,2
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COMMENTS
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Conjecture: For n = 3k, a(n) = (3/4)*10^(4n/3)+5*10^(n/3-1)-1.
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LINKS
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EXAMPLE
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For n = 6, a(6) = (3/4)*10^8 + 5* 10^1-1 = 75000049.
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PROG
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(PARI) /* For this sequence, p = 3 */ g2(n, p) = for(j=0, n, s=0; for(x=0, 10^j, s+=x^(1/p)); print1(floor(s)", "))
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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